thingy91:nRF9160 UART error at launch

[MakotoKoike]

When launching the nRF9160, the following error occurred:
<inf> at_host: UART check failed: 12. Dropping buffer and retrying.

Under what conditions does this come out?

Also, does error No. 12 mean Not enough core?

[Simon]

It just means there is garbage on the UART peripheral during init, and you don't need to worry about this log. As you can see it is just <inf> (information), not an error or warning message.

Best regards,

Simon

[MakotoKoike]

I understand.

Thank you very much.