In our code we use the NRFLog mechanism to trace warnings and errors.
This works fine using JLINK and the Seeger debugger and also we are also able to see some old messages
when the code starts up a second time.
I would also like away to do a post mortem dump of the log messages on
a fatal error. I would reconnect the prototype board using Jlink although\
in an ideal case I would like to recover them over the air.
I understand that the log messages have to be flushed
but I have been unable to find them by dumping the flash memory
in NRF Connect. I found a message about where they were
positioned relative to the other sections but I could not see them.