Thread Bootloader not booting into Thread app (Thread 0.10 SDK)

[Jared]

I noticed that when upgrading to the latest Thread SDK that my devboard stopped booting. I was following the instructions as per the documentation but noticed that my user application stopped booting. I was following the instructions to the tee including this one:

nrfutil settings generate --family NRF52 --application client\pca10056\blank\armgcc_build\nrf52840_xxaa.hex --application-version 1 --bootloader-version 1 --bl-settings-version 1 settings.hex

But it turns out it should be set to:

nrfutil settings generate --family NRF52840 --application $(OUTPUT_DIRECTORY)/nrf52840_xxaa.hex --application-version 1 --bootloader-version 1 --bl-settings-version 1 settings.hex

Where the --family should be set to NRF52840. Figured this would be helpful for anyone else dealing with the problem. This is using nrfutil version 3.2.0.

This is the page where he documentation is incorrect:

infocenter.nordicsemi.com/index.jsp

[Hung Bui]

Hi Jared,

Thanks for reporting.

I assume the documentation about the Bootloader was for the nRF52832. The nRF52840 is still not in production yet. The list of supported devices (which has nRF52840) of the nrfutil can be found here. Please look for "--family"