Application region stuck in app error check

[Sridhar Jonnavittula]

Hi,

I have bootloader programmed in nrf52840. Using OTA I programmed one application region but that application stuck after bootup.

Now how to recover from this situation?

[Vidar Berg]

Hi,

Do you have debug logging enabled, or are you able to debug the app after the OTA update to find out more about the error (i.e. where it occured and what the error code was)? Also, have you tried to see if the app runs ok if you program it directly with the programmer instead of OTA DFU?

Edit: maybe I misunderstood the problem, can you maybe clarify what you mean by recover? Are you wondering how you can fix the actual error, or just how you can get it back into DFU mode?