MCUBoot rolling back to previous image after uploading new app binary, unless confirm only is choosen.

[waatff]

Hi! I'm developing using nrf52840DK and have an issue with DFU. When I'm uploading new app image and choose test and confirm, image is uploaded but after resetting DK, MCUBoot rolls back to previous image. When uploading an image the confirm only option is choosen, everything works fine and MCUBoot uses new image even after resetting, am I doing something wrong or should I add any "confirm image" callback manually in the code?

[Menon]

Hello,

Sorry I forgot to mention that in my response. Yes there is some change in configuring the mcumgnr with NCS v2.3.0 and above. I am attaching a sample with DFU support you can test this and see whether the same is happening or not. I recommend you to try using the nRF connect mobile Application as you can see the log. Also try to look the log from nRF side. Please refer this section for doing that.

Kind Regards,

Abhijith

peripheral_lbs_with_dfu.zip

 

[waatff]

I was comparing my project and sample you provided, turns out the smp_bt_register() was in wrong spot so new image couldn't be confirmed. Thanks a lot for your help.