Device Firmware Update with Device Manager app

[stefanogradozzi]

Hi,

I have a nRF52840 DK which is my Distributor and another  nRF52840 DK which is my Target in DFU process

I utilize Device Manager app to upload bin file to Distributor for DFU of Target.

My question is: the bin file that I have to upload to Distributor with Device Manager app is ../<target_directory>/Build/Zephir/zephir.bin?

Thanks

[Amanda Hsieh]

Hi, 

No, use build/zephyr/app_update.bin to update. See Common output build files and https://academy.nordicsemi.com/courses/nrf-connect-sdk-intermediate/lessons/lesson-8-bootloaders-and-dfu-fota/topic/exercise-3-fota-over-bluetooth-low-energy/  

Regards,
Amanda H.