OTA DFU on NORA B1

[Jirik]

Hello,

I have a project working on Nora B1, which I am testing on nrf5340DK. It is based on the Peripheral UART Sample, programmed with nfr Connect SDK v1.9.1. Now I need to add the OTA DFU to update the program from the nrf Connect mobile app. I changed the prj.conf and main according to this tutorial

https://getwavecake.com/blog/adding-ota-dfu-to-a-nordic-zephyr-project/

It works perfectly, when I am testing it on the Development Kit, but it does not work at all on the Nora B1. The flash is succesful, but the BLE can't get initialised.

I tried a bit and it seems like the problem is caused by the line

CONFIG_BOOTLOADER_MCUBOOT=y

when I add this to the prj. conf, BLE does not work, even when I did not do any changes in the main.

Is there anything special I should take care about while configuring bootloader on the NoraB1?

Thanks a lot for any answer

[Menon]

Hello,

To narrow down this issue, try adding each configuration and seeing when and which configuration is triggering the issue. For doing this, take a simple sample (may be Hello World), include each configuration one by one, and see the result for each. See if it's the bootloader (MCUBOOT) triggering the issue. 

Kind Regards,

Abhijith

[Jirik]

Hello Abhijith,

sorry for the late answer, I was out for a few days. I tested it as you suggested and the issue is really the MCUBOOT. Is there actualy any reason, why the NORA B1 can't do this? (Hardware)

Kind regards

Jiri