DFU

[Will]

I want to use my own compiled bootloader for serial port single slot upgrade in NCS, and I burned the mbr_nrf52_2.4.1_mbr.hex, if I don't burn softdevice, how can the program jump to the bootloader?

[Amanda Hsieh]

Hi, 

NCS uses the mcuboot as a bootloader. Here are some examples for serial port single slot upgrades in NCS https://github.com/hellesvik-nordic/samples_for_nrf_connect_sdk/tree/main/bootloader_samples/serial_recovery 

Regards,
Amanda H. 

[Will]

 I run the mcuboot_serial_recovery_uart demo,the output log is as follows

but when i start to dfu by serial,some errors have occurred,can you tell me what i should do?

[Will]

I have found and solved this problem，haha