Signing update rejected

[Fabien Comte]

When i try to do an update with Nrfutils Under android i get a REMOTE_DFU_OPERATION_FAILED since i added signing.

I created my pem file key with nrfutil.exe keys i copied Qx and Qy in my dfu_init_template_signing.c i modified Makefile to use dfu_init_template_signing.c instead of dfu_init_template.c i signed my update with my pem file key

[Wojtek]

I am not sure where it is in the newest SDK, but there should probably been (since SDK9 afaik) precompiled version of nrf_sec app (hex file), and also the project. I am not sure, but it is possible that it was only in zip version of SDK, not the one from the packs. you can look up your SDK for it and just flash it. you flash softdevice, then that nrf_sec (as application in nrfgo studio) and then bootloader app.