I have two jetson orin nano modules, one of which has a 699-level part number of “699-13767-0003-300 M.2” and the other one has “699-13767-0003-300 L.3”.
Are there any major differences between the two modules? It seems that the L.3 backup is not compatible with the M.2 backup.
Do beware that only the o/s goes on SD card. The rest is on QSPI memory on the module itself. The o/s portion must be compatible with the non-o/s boot content. Perhaps a failure is caused by the non-o/s portions differing. You’d need to flash the actual module to the same content before being able to conclude whether an SD card is causing a difference.