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Problem with DFU mesh generate hex version of device page

Hi,

I'm following DFU quick start guide and I'm using mesh SDK v2.0.1, I have a problem in step 4 wheere I need to generate a hex version of device page, I did this : 

dfu$ py device_page_generator.py -d nrf52832_xxAA -sd "s132_6.0.0" and this is the result:

Wrote device page for nrf53832_xxAA with the s132_6.0.0 SoftDevice to bin/device_page_nrf52832_xxAA_s132_5.0.0.hex instead of s132 version 6 

here is the bin directory:

I don't know why it doesn't generate device page with s132 v6.0.0, help please

Thanks in advance,

Parents
  • The problem above is solved by following this case but now I'm facing another issue in step 10, It shows : Failed to upgrade target. Error is: Failed to establish connection. I have two nRF52832 Devkits (host and target), from step 5 to 9 I flashed all firmwares on both devices, in step 10 i just defined COM port for one of the devices to specify it as host device, I don't know if that's enough to say which device is the host or which is the target or there is another step that I'm missing, help please

    Here is my cmd script : I used mesh SDK v2.0.0 provided in the case mentioned above 

    C:\WINDOWS\system32>cd C:\Users\Mariem\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src>cd in
    Le chemin d’accès spécifié est introuvable.
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src>cd bin
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src\bin>cd blinky
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src\bin\blinky>nrfutil keys --gen-key private_key.txt
    Generated key at: private_key.txt
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src\bin\blinky>nrfutil keys --show-vk hex private_key.txt
    Verification key Qx: 4470d73a4edb6c05b80f24b16e5c2882cbd27fc9c1c73e8dade98bb74fdd68c2
    Verification key Qy: 2db570702e78fdb569ef3e941092a6672dc86ed541f595054b8877ebe89ed66b
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src\bin\blinky>nrfutil dfu genpkg --application blinky_nrf52832_xxAA_s132_5.0.0.hex --company-id 0x00000059 --application-id 1 --application-version 3 --key-file private_key.txt --sd-req 0x009D --mesh dfu_test.zip
    Key file was given, setting DFU version to 0.8
    Zip created at dfu_test.zip
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src\bin\blinky>cd ..
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src\bin>cd ..
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src>cd tools/dfu
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src\tools\dfu>python device_page_generator.py -d nrf52832_xxAA -sd "s132_5.0.0"
    Wrote device page for nrf52832_xxAA with the s132_5.0.0 SoftDevice to bin/device_page_nrf52832_xxAA_s132_5.0.0.hex.
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src\tools\dfu>cd ..
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src\tools>cd ..
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src>nrfjprog --eraseall
    Erasing user available code and UICR flash areas.
    Applying system reset.
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src>nrfjprog --eraseall
    Erasing user available code and UICR flash areas.
    Applying system reset.
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src>nrfjprog --program bin/bootloader/gccarmemb/mesh_bootloader_serial_gccarmemb_nrf52832_xxAA.hex
    Parsing hex file.
    Reading flash area to program to guarantee it is erased.
    Checking that the area to write is not protected.
    Programing device.
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src>nrfjprog --program bin/bootloader/gccarmemb/mesh_bootloader_serial_gccarmemb_nrf52832_xxAA.hex
    Parsing hex file.
    Reading flash area to program to guarantee it is erased.
    Checking that the area to write is not protected.
    Programing device.
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src>mesh-sdk$ nrfjprog --eraseall
    'mesh-sdk$' n’est pas reconnu en tant que commande interne
    ou externe, un programme exécutable ou un fichier de commandes.
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src>nrfjprog --eraseall
    Erasing user available code and UICR flash areas.
    Applying system reset.
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src>nrfjprog --eraseall
    Erasing user available code and UICR flash areas.
    Applying system reset.
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src>nrfjprog --program bin/softdevice/s132_nrf52_5.0.0_softdevice.hex --chiperase
    Parsing hex file.
    Erasing user available code and UICR flash areas.
    Applying system reset.
    Checking that the area to write is not protected.
    Programing device.
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src>nrfjprog --program bin/softdevice/s132_nrf52_5.0.0_softdevice.hex --chiperase
    Parsing hex file.
    Erasing user available code and UICR flash areas.
    Applying system reset.
    Checking that the area to write is not protected.
    Programing device.
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src>nrfjprog --program bin/bootloader/gccarmemb/mesh_bootloader_serial_gccarmemb_nrf52832_xxAA.hex
    Parsing hex file.
    Reading flash area to program to guarantee it is erased.
    Checking that the area to write is not protected.
    Programing device.
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src>nrfjprog --program bin/bootloader/gccarmemb/mesh_bootloader_serial_gccarmemb_nrf52832_xxAA.hex
    Parsing hex file.
    Reading flash area to program to guarantee it is erased.
    Checking that the area to write is not protected.
    Programing device.
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src>nrfjprog --program examples\dfu\build\dfu_nrf52832_xxAA_s132_5.0.0_Debug\dfu_nrf52832_xxAA_s132_5.0.0.hex
    Parsing hex file.
    Reading flash area to program to guarantee it is erased.
    Checking that the area to write is not protected.
    Programing device.
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src>nrfjprog --program examples\dfu\build\dfu_nrf52832_xxAA_s132_5.0.0_Debug\dfu_nrf52832_xxAA_s132_5.0.0.hex
    Parsing hex file.
    Reading flash area to program to guarantee it is erased.
    Checking that the area to write is not protected.
    Programing device.
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src>nrfjprog --program tools/dfu/bin/device_page_nrf52832_xxAA_s132_5.0.0.hex
    Parsing hex file.
    Reading flash area to program to guarantee it is erased.
    Checking that the area to write is not protected.
    Programing device.
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src>nrfjprog --program tools/dfu/bin/device_page_nrf52832_xxAA_s132_5.0.0.hex
    Parsing hex file.
    Reading flash area to program to guarantee it is erased.
    Checking that the area to write is not protected.
    Programing device.
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src>nrfjprog --reset
    Applying system reset.
    Run.
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src>nrfjprog --reset
    Applying system reset.
    Run.
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src>nrfutil --verbose dfu serial -pkg dfu_test.zip -p COM10 -b 115200 -fc --mesh
    Usage: nrfutil dfu serial [OPTIONS]
    
    Error: Invalid value for "-pkg" / "--package": Path "dfu_test.zip" does not exist.
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src>nrfutil --verbose dfu serial -pkg bin\blinky\dfu_test.zip -p COM10 -b 115200 -fc --mesh
    Upgrading target on COM10 with DFU package C:\Users\Mariem\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src\bin\blinky\dfu_test.zip. Flow control is enabled.
      [------------------------------------]    0%Flushing com-port...
    Opened com-port
    Starting DFU upgrade of type 4, SoftDevice size: 0, bootloader size: 0, application size: 1932
    Sending DFU start packet, afterwards we wait for the flash on target to be initialized before continuing.
    PC -> target: 0502aabbccdd
    PC -> target: 0502aabbccdd
    PC -> target: 0502aabbccdd
    PC -> target: 0502aabbccdd
    PC -> target: 0502aabbccdd
    
    
    Failed to upgrade target. Error is: Failed to establish connection
    
    Possible causes:
    - bootloader, SoftDevice or application on target does not match the requirements in the DFU package.
    - baud rate or flow control is not the same as in the target bootloader.
    - target is not in DFU mode. If using the SDK examples, press Button 4 and RESET and release both to enter DFU mode.
    Closing serial port...
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src>

    Thank you,

Reply
  • The problem above is solved by following this case but now I'm facing another issue in step 10, It shows : Failed to upgrade target. Error is: Failed to establish connection. I have two nRF52832 Devkits (host and target), from step 5 to 9 I flashed all firmwares on both devices, in step 10 i just defined COM port for one of the devices to specify it as host device, I don't know if that's enough to say which device is the host or which is the target or there is another step that I'm missing, help please

    Here is my cmd script : I used mesh SDK v2.0.0 provided in the case mentioned above 

    C:\WINDOWS\system32>cd C:\Users\Mariem\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src>cd in
    Le chemin d’accès spécifié est introuvable.
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src>cd bin
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src\bin>cd blinky
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src\bin\blinky>nrfutil keys --gen-key private_key.txt
    Generated key at: private_key.txt
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src\bin\blinky>nrfutil keys --show-vk hex private_key.txt
    Verification key Qx: 4470d73a4edb6c05b80f24b16e5c2882cbd27fc9c1c73e8dade98bb74fdd68c2
    Verification key Qy: 2db570702e78fdb569ef3e941092a6672dc86ed541f595054b8877ebe89ed66b
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src\bin\blinky>nrfutil dfu genpkg --application blinky_nrf52832_xxAA_s132_5.0.0.hex --company-id 0x00000059 --application-id 1 --application-version 3 --key-file private_key.txt --sd-req 0x009D --mesh dfu_test.zip
    Key file was given, setting DFU version to 0.8
    Zip created at dfu_test.zip
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src\bin\blinky>cd ..
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src\bin>cd ..
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src>cd tools/dfu
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src\tools\dfu>python device_page_generator.py -d nrf52832_xxAA -sd "s132_5.0.0"
    Wrote device page for nrf52832_xxAA with the s132_5.0.0 SoftDevice to bin/device_page_nrf52832_xxAA_s132_5.0.0.hex.
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src\tools\dfu>cd ..
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src\tools>cd ..
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src>nrfjprog --eraseall
    Erasing user available code and UICR flash areas.
    Applying system reset.
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src>nrfjprog --eraseall
    Erasing user available code and UICR flash areas.
    Applying system reset.
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src>nrfjprog --program bin/bootloader/gccarmemb/mesh_bootloader_serial_gccarmemb_nrf52832_xxAA.hex
    Parsing hex file.
    Reading flash area to program to guarantee it is erased.
    Checking that the area to write is not protected.
    Programing device.
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src>nrfjprog --program bin/bootloader/gccarmemb/mesh_bootloader_serial_gccarmemb_nrf52832_xxAA.hex
    Parsing hex file.
    Reading flash area to program to guarantee it is erased.
    Checking that the area to write is not protected.
    Programing device.
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src>mesh-sdk$ nrfjprog --eraseall
    'mesh-sdk$' n’est pas reconnu en tant que commande interne
    ou externe, un programme exécutable ou un fichier de commandes.
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src>nrfjprog --eraseall
    Erasing user available code and UICR flash areas.
    Applying system reset.
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src>nrfjprog --eraseall
    Erasing user available code and UICR flash areas.
    Applying system reset.
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src>nrfjprog --program bin/softdevice/s132_nrf52_5.0.0_softdevice.hex --chiperase
    Parsing hex file.
    Erasing user available code and UICR flash areas.
    Applying system reset.
    Checking that the area to write is not protected.
    Programing device.
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src>nrfjprog --program bin/softdevice/s132_nrf52_5.0.0_softdevice.hex --chiperase
    Parsing hex file.
    Erasing user available code and UICR flash areas.
    Applying system reset.
    Checking that the area to write is not protected.
    Programing device.
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src>nrfjprog --program bin/bootloader/gccarmemb/mesh_bootloader_serial_gccarmemb_nrf52832_xxAA.hex
    Parsing hex file.
    Reading flash area to program to guarantee it is erased.
    Checking that the area to write is not protected.
    Programing device.
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src>nrfjprog --program bin/bootloader/gccarmemb/mesh_bootloader_serial_gccarmemb_nrf52832_xxAA.hex
    Parsing hex file.
    Reading flash area to program to guarantee it is erased.
    Checking that the area to write is not protected.
    Programing device.
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src>nrfjprog --program examples\dfu\build\dfu_nrf52832_xxAA_s132_5.0.0_Debug\dfu_nrf52832_xxAA_s132_5.0.0.hex
    Parsing hex file.
    Reading flash area to program to guarantee it is erased.
    Checking that the area to write is not protected.
    Programing device.
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src>nrfjprog --program examples\dfu\build\dfu_nrf52832_xxAA_s132_5.0.0_Debug\dfu_nrf52832_xxAA_s132_5.0.0.hex
    Parsing hex file.
    Reading flash area to program to guarantee it is erased.
    Checking that the area to write is not protected.
    Programing device.
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src>nrfjprog --program tools/dfu/bin/device_page_nrf52832_xxAA_s132_5.0.0.hex
    Parsing hex file.
    Reading flash area to program to guarantee it is erased.
    Checking that the area to write is not protected.
    Programing device.
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src>nrfjprog --program tools/dfu/bin/device_page_nrf52832_xxAA_s132_5.0.0.hex
    Parsing hex file.
    Reading flash area to program to guarantee it is erased.
    Checking that the area to write is not protected.
    Programing device.
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src>nrfjprog --reset
    Applying system reset.
    Run.
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src>nrfjprog --reset
    Applying system reset.
    Run.
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src>nrfutil --verbose dfu serial -pkg dfu_test.zip -p COM10 -b 115200 -fc --mesh
    Usage: nrfutil dfu serial [OPTIONS]
    
    Error: Invalid value for "-pkg" / "--package": Path "dfu_test.zip" does not exist.
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src>nrfutil --verbose dfu serial -pkg bin\blinky\dfu_test.zip -p COM10 -b 115200 -fc --mesh
    Upgrading target on COM10 with DFU package C:\Users\Mariem\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src\bin\blinky\dfu_test.zip. Flow control is enabled.
      [------------------------------------]    0%Flushing com-port...
    Opened com-port
    Starting DFU upgrade of type 4, SoftDevice size: 0, bootloader size: 0, application size: 1932
    Sending DFU start packet, afterwards we wait for the flash on target to be initialized before continuing.
    PC -> target: 0502aabbccdd
    PC -> target: 0502aabbccdd
    PC -> target: 0502aabbccdd
    PC -> target: 0502aabbccdd
    PC -> target: 0502aabbccdd
    
    
    Failed to upgrade target. Error is: Failed to establish connection
    
    Possible causes:
    - bootloader, SoftDevice or application on target does not match the requirements in the DFU package.
    - baud rate or flow control is not the same as in the target bootloader.
    - target is not in DFU mode. If using the SDK examples, press Button 4 and RESET and release both to enter DFU mode.
    Closing serial port...
    
    C:\Users\Arij\Desktop\mesh\nrf5_SDK_for_Mesh_v2.0.0_src\nrf5_SDK_for_Mesh_v2.0.0_src>

    Thank you,

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