Update Bootloader via FOTA

RE: Update Bootloader via FOTA

Chris Yin — Wed, 11 Nov 2020 08:03:12 GMT

This is resolved and thank you, Vidar.

RE: Update Bootloader via FOTA

Vidar Berg — Wed, 21 Oct 2020 08:41:15 GMT

Yes, correct. The bootloader can be updated, it's just that the update has to be performed in two steps instead of one due to the limited flash space.

RE: Update Bootloader via FOTA

Chris Yin — Wed, 21 Oct 2020 03:08:55 GMT

So is the answer 'yes' even if rom is not abundant in our case? The bootloader needs to delete application then new bootloader and soft-device can be updated via BLE. Application is re-updated after bootloader update completes. Is it correct?

RE: Update Bootloader via FOTA

Vidar Berg — Tue, 20 Oct 2020 09:59:21 GMT

Hello,

It's not possible to update the bootloader "in-place", so the update has to be dual-banked. This means the old bootloader has to delete the application to make room for the new bootloader image. But note that you can re-upload the application again as soon as you've completed the bootloader update.

Best regards,

Vidar