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]

No. It is still possible to dump your rom (unless you set readback protect). There is no encryption of the updated app. Signing only secures your device against somebody who could connect to it with mobile MCP and upload blinky or some hello world app :) Somewhere near that nrf_sec should be some nice PDF document describing whole signing process and advantages it gives.

Did you also check ZIP version?