Issue with bootloader and azure_fota sample on nrf9160

RE: Issue with bootloader and azure_fota sample on nrf9160

Simon — Fri, 04 Jun 2021 16:04:55 GMT

Check out this answer:

https://devzone.nordicsemi.com/f/nordic-q-a/69344/how-to-create-a-mcuboot-image-and-an-application-image-without-modifying-the-sdk/307039#307039

RE: Issue with bootloader and azure_fota sample on nrf9160

AngeldelaCalle — Fri, 04 Jun 2021 10:43:46 GMT

Hello Simon,

thank you very much for the answer. Looks like the problem was related with signing the binary.
Do you have any advice or do you know if there is any thread explaining how to sign an application for flashing it?

RE: Issue with bootloader and azure_fota sample on nrf9160

Simon — Fri, 21 May 2021 12:08:34 GMT

What bin file are you using? After you've programmed the azure_fota sample, change the text "Azure FOTA sample started\n" to "Azure FOTA v2 sample started\n" and rebuild the sample without flashing it, then use the bin file found in nrf9160\azure_fota\<build folder>\zephyr\app_update.bin.

It is important that the bin file is signed with the private key that was used to generate the public key stored in mcuboot? If not, the validation will fail. If you follow the above procedure, a default key (should not be used in production) will be used and everything should be handled for you and it should work out of the box.

If you still don't manage to get it to work, please get back to me.

Best regards,

Simon