few questions about bootloader settings

[ziv123]

hello Nordic

i am working with nrf52832 soc with SDK 16.0, S132 V7.0.1

following this path:

https://devzone.nordicsemi.com/nordic/short-range-guides/b/software-development-kit/posts/getting-started-with-nordics-secure-dfu-bootloader

and this : https://infocenter.nordicsemi.com/index.jsp?topic=%2Fug_nrfutil%2FUG%2Fnrfutil%2Fnrfutil_settings_generate_display.html

1. when trying to read current setting of existing bootloader in the examples i get this:

C:\Nordik SDK\examples\dfu\secure_bootloader>nrfutil settings display pca10040_uart\ses\Output\Release\Exe\secure_bootloader_uart_mbr_pca10040.hex
Bad access at 0x7F000: not enough data to read 4 contiguous bytes
Usage: nrfutil settings display [OPTIONS] HEX_FILE

Error: Failed to parse .hex file: Bad access at 0xFF000: not enough data to read 4 contiguous bytes

why is that ?

2. if i generate a setting for the bootloader and i include the softdevice in the "nrf settings generate command (like so:  --softdevice FILE s132_nrf52_7.0.1_softdevice.hex)

do i still need to mergehex the bootloader with the s132 hex file ? considering that when i flash my application (using SEGGER) after erasing the nrf52832 i do not need to flash the softdevice separately

3. the settings generate command refers to application version, do i need to change the setting each time i change application version or it's name (considering the version is in the name) ?

4. if i mergehex the bootloader settings hex file with the bootloader hex file and i flash the bootloader without having an application flashed on the device, what will happen ? would i be able to flash the application via SEGGER normally or must i have the application hex flashed before the flashing of the bootloader or mergehex with the bootloader ?

that it for now

p.s. 5. in the dfu examples, what's the difference between pca10040_uart to pca10040_uart_debug can both be used for production also can they be used for a PCB not an nrf52832DK ? 

hope to read from you soon

best regards

Ziv

 

[ziv123]

for some reason also the first dfu does not work.. some issue with valisation, but lets say it will work.. like before, after i dfu once how can i enter the debug mode in the bootloader when entering to it after application initiates restart ? 

also, when trying to change linker section placement (to match that in the non debug version, that works, i assume that was part of the error i got with first dfu)

then i get this error on build:

1> Generating linker script ‘secure_bootloader_uart_mbr_pca10040_debug.ld’
1> Linking secure_bootloader_uart_mbr_pca10040_debug.elf
1> C:/Program Files/SEGGER/SEGGER Embedded Studio for ARM 5.40c/gcc/arm-none-eabi/bin/ld: error: .rodata is too large to fit in FLASH memory segment
1> C:/Program Files/SEGGER/SEGGER Embedded Studio for ARM 5.40c/gcc/arm-none-eabi/bin/ld: error: .data is too large to fit in FLASH memory segment
Build failed

the data is:

linker_section_placement_macros="FLASH_PH_START=0x0;FLASH_PH_SIZE=0x80000;RAM_PH_START=0x20000000;RAM_PH_SIZE=0x10000;FLASH_START=0x78000;FLASH_SIZE=0x6000;RAM_START=0x20000008;RAM_SIZE=0xfff8"
      
linker_section_placements_segments="FLASH RX 0x0 0x80000;RAM RWX 0x20000000 0x10000;uicr_bootloader_start_address RX 0x10001014 0x4;bootloader_settings_page RX 0x0007F000 0x1000;uicr_mbr_params_page RX 0x10001018 0x4;mbr_params_page RX 0x0007E000 0x1000"
     

my app is:

linker_section_placement_macros="FLASH_PH_START=0x0;FLASH_PH_SIZE=0x80000;RAM_PH_START=0x20000000;RAM_PH_SIZE=0x10000;FLASH_START=0x26000;FLASH_SIZE=0x4a000;RAM_START=0x20001db8;RAM_SIZE=0xe248"
      linker_section_placements_segments="FLASH RX 0x0 0x80000;RAM RWX 0x20000000 0x10000"

[Einar Thorsrud]

Hi,

ziv123 said:

for some reason also the first dfu does not work..

I forgot to specify that you need to use your own public key also for debug builds if you do not allready in examples\dfu\dfu_public_key.c, so that could be the problem if validation fails.

ziv123 said:

like before, after i dfu once how can i enter the debug mode in the bootloader when entering to it after application initiates restart ? 

That would be in the exact same way. The debug bootloader is essentially the same just that it has RTT logging.

ziv123 said:

also, when trying to change linker section placement (to match that in the non debug version, that works, i assume that was part of the error i got with first dfu)

then i get this error on build:

That is expected. The debug bootloader is much larger, so it has to start lower. There is no need to modify this. Note that this means that you cannot DFU in a debug bootloader when you have a release bootloader from before, as the bootloader start address cannot change. Bu there we just want to use the debug bootloader now to see what happens so that is no problem.

ziv123 said:

my app is:

It makes sense to reduce the specified size of the app so that the app start address + size is less than the bootloader start address. In practice it may not matter much as the linker will typically place things at low addresses first so I would perhaps not bother for this simple test.

[ziv123]

Einar Thorsrud said:

That is expected. The debug bootloader is much larger, so it has to start lower. There is no need to modify this.

in the memory layout in the below link, the bootloader should be between the address 0x78000 - 0x7E000

in the debug example the memory starts at 0x64000 and its size is 0x1a000 which does not fit the memory range from datasheet and actually takes place of the application memory range, how come ???

https://infocenter.nordicsemi.com/index.jsp?topic=%2Fsdk_nrf5_v16.0.0%2Flib_bootloader.html&anchor=lib_bootloader_memory

Einar Thorsrud said:

Note that this means that you cannot DFU in a debug bootloader when you have a release bootloader from before

i always erase device before flashing with a new bootloader and off course i will not flash a different bootloader each time without clearing the previous

Einar Thorsrud said:

I forgot to specify that you need to use your own public key also for debug builds if you do not allready in examples\dfu\dfu_public_key.c, so that could be the problem if validation fails.

i have created my own public key (i think if i would not it would also not work for the release bootloader)

if i have to generate another key, for the debug bootloader, which is different from the release bootloader please clarify on that matter.

Einar Thorsrud said:

That would be in the exact same way. The debug bootloader is essentially the same just that it has RTT logging.

i feel that we might have some misunderstandings by your answer to my question, my question was that once i flash the debug bootloader and preform one successful dfu (which i was expecting to work like in the release bootloader), then i want to debug the second dfu from the application that failed, so i am not sure it is possible to run the bootloader via the debugger and stay in debug mode of bootloader after application is running and when application is resetting the system ?

after changing the app size so it will work though all the above mentioned mismatching, which i would still like to understand,  there is the log .. the app does not seem to work , it looks to me like it activates and then can't find it .. here is the log :

<debug> nrf_dfu_flash: Flash write success: addr=0x0004A9C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AA00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AA00, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AA40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AA40, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AA80, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AAC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AAC0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AB00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AB00, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AB40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AB40, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AB80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AB80, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004ABC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004ABC0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AC00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AC00, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AC40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AC40, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AC80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AC80, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004ACC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004ACC0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AD00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AD00, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AD40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AD40, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AD80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AD80, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004ADC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004ADC0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AE00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AE00, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AE40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AE40, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AE80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AE80, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AEC0, src=0ding 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AF00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AF00, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AF40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AF40, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AF80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AF80, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AFC0, src=0x200016F8, len=64 bytes), queue usage: 1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AFC0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_CRC_GET (data)
<debug> nrf_dfu_req_handler: Offset:73728, CRC:0x4E1CCAD9
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<debug> nrf_dfu_serial: Sending Response: [0x3, 0x1]
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_EXECUTE (data)
<debug> nrf_dfu_serial: Sending Response: [0x4, 0x1]
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<debug> app: timer_stop (0x20000024)
<debug> app: timer_activate (0x20000024)
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_CREATE (data)
<debug> nrf_dfu_flash: nrf_fstorage_erase(addr=0x0x0004B000, len=1 pages), queue usage: 1
<debug> nrf_dfu_flash: Flash erase success: addr=0x0004B000, pending 0
<debug> nrf_dfu_req_handler: Creating object with size: 3632. Offset: 0x00012000, CRC: 0x4E1CCAD9
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<debug> nrf_dfu_serial: Sending Response: [0x1, 0x1]
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B000, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B000, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B040, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B040, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B080, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B080, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B0C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B0C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B100, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B100, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B140, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B140, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B180, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B180, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B1C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B1C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B200, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B200, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B240, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B240, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B280, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B280, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B2C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B2C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B300, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B300, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B340, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B340, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B380, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B380, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B3C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B3C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B400, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B400, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B440, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B440, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B480, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B480, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B4C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B4C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B500, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B500, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B540, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B540, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B580, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B580, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B5C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B5C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B600, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B600, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B640, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B640, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B680, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B680, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B6C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B6C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B700, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B700, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B740, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B740, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B780, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B780, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B7C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B7C0, pending 0
0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B800, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B800, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B840, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B840, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B880, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B880, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B8C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B8C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B900, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B900, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B940, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B940, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B980, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B980, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B9C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B9C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
a)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BA00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BA00, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BA40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BA40, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BA80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BA80, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BAC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BAC0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BB00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BB00, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BB40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BB40, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BB80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BB80, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BBC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BBC0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BC00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BC00, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
a)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BC40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BC40, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BC80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BC80, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BCC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BCC0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BD00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BD00, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BD40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BD40, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BD80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BD80, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BDC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BDC0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BE00, src=0x2000177C, len=48 bytes), queue usage: 1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BE00, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_CRC_GET (data)
<debug> nrf_dfu_req_handler: Offset:77360, CRC:0x9224D8F7
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<debug> nrf_dfu_serial: Sending Response: [0x3, 0x1]
<info> app: Inside main
<debug> app: In nrf_bootloader_init
<debug> nrf_dfu_settings: Calling nrf_dfu_settings_init()...
<debug> nrf_dfu_flash: Initializing nrf_fstorage_nvmc backend.
<debug> nrf_dfu_settings: Using settings page.
<debug> nrf_dfu_settings: Copying forbidden parts from backup page.
<debug> nrf_dfu_settings: Destination settings are identical to source, write not needed. Skipping.
<info> nrf_dfu_settings: Backing up settings page to address 0x7E000.
<debug> nrf_dfu_settings: Destination settings are identical to source, write not needed. Skipping.
<debug> app: Enter nrf_bootloader_fw_activate
<debug> app: Valid App
<debug> app: Enter nrf_dfu_app_continue
<info> nrf_bootloader_wdt: WDT is not enabled
<debug> nrf_dfu_flash: nrf_fstorage_erase(addr=0x0x00026000, len=8 pages), queue usage: 0
<debug> nrf_dfu_flash: Flash erase success: addr=0x00026000, pending 0
<debug> app: Copying 0x39000 to 0x26000, size: 0x8000
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00026000, src=0x00039000, len=32768 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00026000, pending 0
<debug> nrf_dfu_settings: Writing settings...
<debug> nrf_dfu_settings: Erasing old settings at: 0x0007F000
<debug> nrf_dfu_flash: nrf_fstorage_erase(addr=0x0x0007F000, len=1 pages), queue usage: 1
<debug> nrf_dfu_flash: Flash erase success: addr=0x0007F000, pending 0
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0007F000, src=0x20001C60, len=896 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0007F000, pending 0
<info> nrf_dfu_settings: Backing up settings page to address 0x7E000.
<debug> nrf_dfu_settings: Writing settings...
<debug> nrf_dfu_settings: Erasing old settings at: 0x0007E000
<debug> nrf_dfu_flash: nrf_fstorage_erase(addr=0x0x0007E000, len=1 pages), queue usage: 1
<debug> nrf_dfu_flash: Flash erase success: addr=0x0007E000, pending 0
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0007E000, src=0x200018E0, len=896 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0007E000, pending 0
<debug> nrf_dfu_flash: nrf_fstorage_erase(addr=0x0x0002E000, len=8 pages), queue usage: 1
<debug> nrf_dfu_flash: Flash erase success: addr=0x0002E000, pending 0
<debug> app: Copying 0x41000 to 0x2E000, size: 0x8000
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0002E000, src=0x00041000, len=32768 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0002E000, pending 0
<debug> nrf_dfu_settings: Writing settings...
<debug> nrf_dfu_settings: Erasing old settings at: 0x0007F000
<debug> nrf_dfu_flash: nrf_fstorage_erase(addr=0x0x0007F000, len=1 pages), queue usage: 1
<debug> nrf_dfu_flash: Flash erase success: addr=0x0007F000, pending 0
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0007F000, src=0x20001C60, len=896 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0007F000, pending 0
<info> nrf_dfu_settings: Backing up settings page to address 0x7E000.
<debug> nrf_dfu_settings: Writing settings...
<debug> nrf_dfu_settings: Erasing old settings at: 0x0007E000
<debug> nrf_dfu_flash: nrf_fstorage_erase(addr=0x0x0007E000, len=1 pages), queue usage: 1
<debug> nrf_dfu_flash: Flash erase success: addr=0x0007E000, pending 0
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0007E000, src=0x200018E0, len=896 bytes), queue usage: 1
<info> app: Inside main
<debug> app: In nrf_bootloader_init
<debug> nrf_dfu_settings: Calling nrf_dfu_settings_init()...
<debug> nrf_dfu_flash: Initializing nrf_fstorage_nvmc backend.
<debug> nrf_dfu_settings: Using settings page.
<debug> nrf_dfu_settings: Copying forbidden parts from backup page.
<debug> nrf_dfu_settings: Destination settings are identical to source, write not needed. Skipping.
<info> nrf_dfu_settings: Backing up settings page to address 0x7E000.
<debug> nrf_dfu_settings: Destination settings are identical to source, write not needed. Skipping.
<debug> app: Enter nrf_bootloader_fw_activate
<info> app: No firmware to activate.
<debug> app: App is valid
<debug> app: DFU mode requested via button.
<info> nrf_bootloader_wdt: WDT is not enabled
<debug> app: in weak nrf_dfu_init_user
<debug> app: timer_stop (0x20000024)
<debug> app: timer_activate (0x20000024)
<info> app: Entering DFU mode.
<debug> app: Initializing transports (found: 1)
<debug> nrf_dfu_serial_uart: serial_dfu_transport_init()
<debug> nrf_dfu_serial_uart: serial_dfu_transport_init() completed
<debug> nrf_dfu_flash: Initializing nrf_fstorage_nvmc backend.
<debug> app: Enter main loop

if i try to dfu again though the app does not work this time which is a difference, then it seems the bootloader flashed the new app after the first one which is very unclear why it would do it, also the softdevice (becoming green like application) shifts from address 0x1000 to 0xff8 which is out of its written range .. what is that about ????

this is the log of the second dfu:

<debug> nrf_dfu_flash: Flash write success: addr=0x0004A800, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004A840, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004A840, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004A880, src=0x2000177C, len=64 bytes), queue usage: 1
ding 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004A8C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004A8C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004A900, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004A900, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004A940, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004A940, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004A980, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004A980, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004A9C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004A9C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AA00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AA00, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AA40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AA40, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AA80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AA80, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AAC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AAC0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AB00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AB00, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AB40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AB40, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AB80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AB80, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004ABC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004ABC0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AC00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AC00, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AC40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AC40, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AC80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AC80, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004ACC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004ACC0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AD00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AD00, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AD40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AD40, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AD80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AD80, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004ADC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004ADC0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AE00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AE00, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AE40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AE40, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AE80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AE80, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AEC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AEC0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
a)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AF00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AF00, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AF40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AF40, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AF80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AF80, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004AFC0, src=0x200016F8, len=64 bytes), queue usage: 1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_flash: Flash write success: addr=0x0004AFC0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_CRC_GET (data)
<debug> nrf_dfu_req_handler: Offset:73728, CRC:0xE36519E8
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<debug> nrf_dfu_serial: Sending Response: [0x3, 0x1]
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_EXECUTE (data)
<debug> nrf_dfu_serial: Sending Response: [0x4, 0x1]
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<debug> app: timer_stop (0x20000024)
<debug> app: timer_activate (0x20000024)
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_CREATE (data)
<debug> nrf_dfu_flash: nrf_fstorage_erase(addr=0x0x0004B000, len=1 pages), queue usage: 1
<debug> nrf_dfu_flash: Flash erase success: addr=0x0004B000, pending 0
<debug> nrf_dfu_req_handler: Creating object with size: 3632. Offset: 0x00012000, CRC: 0xE36519E8
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<debug> nrf_dfu_serial: Sending Response: [0x1, 0x1]
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B000, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B000, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B040, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B040, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B080, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B080, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B0C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B0C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B100, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B100, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B140, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B140, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B180, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B180, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B1C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B1C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B200, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B200, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B240, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B240, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B280, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B280, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B2C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B2C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B300, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B300, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B340, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B340, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B380, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B380, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B3C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B3C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B400, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B400, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B440, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B440, pending 0
0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B480, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B480, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B4C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B4C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B500, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B500, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B540, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B540, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B580, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B580, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B5C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B5C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B600, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B600, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B640, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B640, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B680, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B680, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B6C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B6C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B700, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B700, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B740, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B740, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B780, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B780, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B7C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B7C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B800, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B800, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B840, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B840, pending 0
0x1
a)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B880, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B880, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B8C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B8C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B900, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B900, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B940, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B940, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B980, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B980, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004B9C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004B9C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BA00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BA00, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BA40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BA40, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BA80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BA80, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BAC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BAC0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BB00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BB00, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BB40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BB40, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BB80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BB80, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BBC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BBC0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BC00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BC00, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BC40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BC40, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BC80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BC80, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BCC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BCC0, pending 0
0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BD00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BD00, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BD40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BD40, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BD80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BD80, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BDC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BDC0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0004BE00, src=0x2000177C, len=48 bytes), queue usage: 1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_flash: Flash write success: addr=0x0004BE00, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_CRC_GET (data)
<debug> nrf_dfu_req_handler: Offset:77360, CRC:0x72AA4C29
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<debug> nrf_dfu_serial: Sending Response: [0x3, 0x1]
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_EXECUTE (data)
<debug> nrf_dfu_req_handler: Whole firmware image receive<info> app: Inside main
<debug> app: In nrf_bootloader_init
<debug> nrf_dfu_settings: Calling nrf_dfu_settings_init()...
<debug> nrf_dfu_flash: Initializing nrf_fstorage_nvmc backend.
<debug> nrf_dfu_settings: Using settings page.
<debug> nrf_dfu_settings: Copying forbidden parts from backup page.
<debug> nrf_dfu_settings: Destination settings are identical to source, write not needed. Skipping.
<info> nrf_dfu_settings: Backing up settings page to address 0x7E000.
<debug> nrf_dfu_settings: Destination settings are identical to source, write not needed. Skipping.
<debug> app: Enter nrf_bootloader_fw_activate
<debug> app: Valid App
<debug> app: Enter nrf_dfu_app_continue
<info> nrf_bootloader_wdt:<info> app: Inside main
<debug> app: In nrf_bootloader_init
<debug> nrf_dfu_settings: Calling nrf_dfu_settings_init()...
<debug> nrf_dfu_flash: Initializing nrf_fstorage_nvmc backend.
<debug> nrf_dfu_settings: Using settings page.
<debug> nrf_dfu_settings: Copying forbidden parts from backup page.
<debug> nrf_dfu_settings: Destination settings are identical to source, write not needed. Skipping.
<info> nrf_dfu_settings: Backing up settings page to address 0x7E000.
<debug> nrf_dfu_settings: Destination settings are identical to source, write not needed. Skipping.
<debug> app: Enter nrf_bootloader_fw_activate
<info> app: No firmware to activate.
<debug> app: App is valid
<debug> app: DFU mode requested via button.
<info> nrf_bootloader_wdt: WDT is not enabled
<debug> app: in weak nrf_dfu_init_user
<debug> app: timer_stop (0x20000024)
<debug> app: timer_activate (0x20000024)
<info> app: Entering DFU mode.
<debug> app: Initializing transports (found: 1)
<debug> nrf_dfu_serial_uart: serial_dfu_transport_init()
<debug> nrf_dfu_serial_uart: serial_dfu_transport_init() completed
<debug> nrf_dfu_flash: Initializing nrf_fstorage_nvmc backend.
<debug> app: Enter main loop

eventually it might just end up to some sdk_config configurations but so far nothing makes sense.. hope you will help me understand and learn

[Einar Thorsrud]

Hi,

ziv123 said:

in the debug example the memory starts at 0x64000 and its size is 0x1a000 which does not fit the memory range from datasheet and actually takes place of the application memory range, how come ???

This is just an example of what it typically looks like in the default configuration. The debug bootloader is larger and therefor needs to start lower. It does not matter as the MBR knows the bootloader start address because it is written to a specific address (in the end of the MBR page or UICR depending on SDK version, but principle is the same). 

ziv123 said:

i have created my own public key (i think if i would not it would also not work for the release bootloader)

The dfu_public_key.c separates between the keys as the DEBUG bootloader by default use the public key for the key that signed the test images. In your case you must ensure to use your own key in both cases. Simply remove the whole #if/else/endif handling for DEBUG in that file and just provide your key.

ziv123 said:

if i have to generate another key, for the debug bootloader, which is different from the release bootloader please clarify on that matter.

You do not need more than one keypair, it only confuses. Just make sure you use your public key in both build variants as explained above.

ziv123 said:

i feel that we might have some misunderstandings by your answer to my question, my question was that once i flash the debug bootloader and preform one successful dfu (which i was expecting to work like in the release bootloader), then i want to debug the second dfu from the application that failed, so i am not sure it is possible to run the bootloader via the debugger and stay in debug mode of bootloader after application is running and when application is resetting the system ?

This is not a problem. The debug session is not terminated by a soft reset. Just make sure you don not use RTT logging in the application, as that can confuse the RTT viewer.

ziv123 said:

it looks to me like it activates and then can't find it .. here is the log :

Reading the log you see this closed to the end "DFU mode requested via button.", and that leads naturally to "DFU mode requested via button.". So even if DFU is performed, the bootloader enters DFU mode because a pin is configured as a DFU enter method and that pin is asserted. If you do not want to use this as a DFU enter method, you should set NRF_BL_DFU_ENTER_METHOD_BUTTON in sdk_config.h for the bootloader you now use to 0. That way this pin will not trigger DFU mode.

ziv123 said:

if i try to dfu again though the app does not work this time which is a difference, then it seems the bootloader flashed the new app after the first one which is very unclear why it would do it, also the softdevice (becoming green like application) shifts from address 0x1000 to 0xff8 which is out of its written range .. what is that about ????

You cannot put any emphasis on the graphical representation in nRF Connect Programmer. That is unfortunately more confusing than sensible. The colored area has data and the other does not. But the splits and types it assigns is based on a very simplistic approach that typically is incorrect. Also, where it looks like two apps it is just because there happen to be a sequence of ff's in there, and the nRF Connect Programmer will interpret that as two images. But it is not the case.

[ziv123]

ok so the config of " NRF_BL_DFU_ENTER_METHOD_BUTTON  " to 0 solved the first dfu issue, and the app works after the first one

just to be clear, i erased the device, then flashed the softdevice then run the bootloader in debug mode and dfu the app .. the app then worked and i sent it the command to go to set the register flag and restart and then i tried to dfu another version of the app and i got this like before:

D:\Ziv\projects\Redent-Nova-FW>nrfutil dfu serial -pkg Redent_0.zip -p COM12
  [####################################]  100%
Device programmed.

D:\Ziv\projects\Redent-Nova-FW>nrfutil dfu serial -pkg Redent_1.zip -p COM12 

Traceback (most recent call last):
  File "C:\Program Files (x86)\Python383\Scripts\nrfutil-script.py", line 11, in <module>       
    load_entry_point('nrfutil==6.1.0', 'console_scripts', 'nrfutil')()
  File "c:\program files (x86)\python383\lib\site-packages\click\core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "c:\program files (x86)\python383\lib\site-packages\click\core.py", line 782, in main    
    rv = self.invoke(ctx)
  File "c:\program files (x86)\python383\lib\site-packages\click\core.py", line 1259, in invoke 
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "c:\program files (x86)\python383\lib\site-packages\click\core.py", line 1259, in invoke 
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "c:\program files (x86)\python383\lib\site-packages\click\core.py", line 1066, in invoke 
    return ctx.invoke(self.callback, **ctx.params)
  File "c:\program files (x86)\python383\lib\site-packages\click\core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "c:\program files (x86)\python383\lib\site-packages\nordicsemi\__main__.py", line 1055, in serial
    do_serial(package, port, connect_delay, flow_control, packet_receipt_notification, baud_rate, serial_number, True,
  File "c:\program files (x86)\python383\lib\site-packages\nordicsemi\__main__.py", line 970, in do_serial
    dfu.dfu_send_images()
  File "c:\program files (x86)\python383\lib\site-packages\nordicsemi\dfu\dfu.py", line 127, in dfu_send_images
    self._dfu_send_image(self.manifest.application)
  File "c:\program files (x86)\python383\lib\site-packages\nordicsemi\dfu\dfu.py", line 88, in _dfu_send_image
    self.dfu_transport.open()
  File "c:\program files (x86)\python383\lib\site-packages\nordicsemi\dfu\dfu_transport_serial.py", line 214, in open
    raise NordicSemiException("No ping response after opening COM port")
pc_ble_driver_py.exceptions.NordicSemiException: No ping response after opening COM port

the log for the first and second dfu is this:

<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x000376C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x000376C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00037700, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037700, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00037740, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037740, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
ding 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x000377C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x000377C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00037800, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037800, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00037840, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037840, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00037880, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037880, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x000378C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x000378C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00037900, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037900, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00037940, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037940, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00037980, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037980, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
ding 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00037A00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037A00, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00037A40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037A40, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00037A80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037A80, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00037AC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037AC0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00037B00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037B00, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00037B40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037B40, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00037B80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037B80, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00037BC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037BC0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00037C00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037C00, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00037C40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037C40, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00037C80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037C80, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00037CC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037CC0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00037D00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037D00, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00037D40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037D40, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00037D80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037D80, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00037DC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037DC0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
a)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00037E00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037E00, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00037E40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037E40, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00037E80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037E80, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00037EC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037EC0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00037F00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037F00, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00037F40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037F40, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00037F80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00037F80, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00037FC0, src=0x200016F8, len=64 bytes), queue usage: 1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_flash: Flash write success: addr=0x00037FC0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_CRC_GET (data)
<debug> nrf_dfu_req_handler: Offset:73728, CRC:0x4E1CCAD9
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<debug> nrf_dfu_serial: Sending Response: [0x3, 0x1]
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_EXECUTE (data)
<debug> nrf_dfu_serial: Sending Response: [0x4, 0x1]
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<debug> app: timer_stop (0x20000024)
<debug> app: timer_activate (0x20000024)
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_CREATE (data)
<debug> nrf_dfu_flash: nrf_fstorage_erase(addr=0x0x00038000, len=1 pages), queue usage: 1
<debug> nrf_dfu_flash: Flash erase success: addr=0x00038000, pending 0
<debug> nrf_dfu_req_handler: Creating object with size: 3632. Offset: 0x00012000, CRC: 0x4E1CCAD9
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<debug> nrf_dfu_serial: Sending Response: [0x1, 0x1]
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00038000, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038000, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00038040, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038040, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00038080, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038080, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x000380C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x000380C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00038100, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038100, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00038140, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038140, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00038180, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038180, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x000381C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x000381C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00038200, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038200, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00038240, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038240, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00038280, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038280, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x000382C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x000382C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00038300, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038300, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00038340, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038340, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00038380, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038380, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x000383C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x000383C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00038400, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038400, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00038440, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038440, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00038480, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038480, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x000384C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x000384C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00038500, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038500, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00038540, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038540, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00038580, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038580, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x000385C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x000385C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00038600, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038600, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00038640, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038640, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00038680, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038680, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x000386C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x000386C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00038700, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038700, pending 0
0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00038740, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038740, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00038780, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038780, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x000387C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x000387C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00038800, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038800, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00038840, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038840, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00038880, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038880, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x000388C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x000388C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00038900, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038900, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
a)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00038940, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038940, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00038980, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038980, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x000389C0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x000389C0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00038A00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038A00, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00038A40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038A40, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00038A80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038A80, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00038AC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038AC0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00038B00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038B00, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00038B40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038B40, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00038B80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038B80, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00038BC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038BC0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00038C00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038C00, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00038C40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038C40, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00038C80, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038C80, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00038CC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038CC0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00038D00, src=0x2000177C, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038D00, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00038D40, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038D40, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00038D80, src=0x2000177C, len=64 bytes), queue usage: 1
ding 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 20001778
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00038DC0, src=0x200016F8, len=64 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x00038DC0, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00038E00, src=0x2000177C, len=48 bytes), queue usage: 1
<info> nrf_dfu_serial_uart: Allocated buffer 200016F4
<debug> nrf_dfu_flash: Flash write success: addr=0x00038E00, pending 0
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_CRC_GET (data)
<debug> nrf_dfu_req_handler: Offset:77360, CRC:0x9224D8F7
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<debug> nrf_dfu_serial: Sending Response: [0x3, 0x1]
<info> app: Inside main
<debug> app: In nrf_bootloader_init
<debug> nrf_dfu_settings: Calling nrf_dfu_settings_init()...
<debug> nrf_dfu_flash: Initializing nrf_fstorage_nvmc backend.
<debug> nrf_dfu_settings: Using settings page.
<debug> nrf_dfu_settings: Copying forbidden parts from backup page.
<debug> nrf_dfu_settings: Destination settings are identical to source, write not needed. Skipping.
<info> nrf_dfu_settings: Backing up setting<info> app: Inside main
<debug> app: In nrf_bootloader_init
<debug> nrf_dfu_settings: Calling nrf_dfu_settings_init()...
<

hope this log will help to identify the problem

p.s. afte sometime the app first app is running again though dfu did not finish successfully