Brains Gone!

Some of my production units are bricking after a reboot… They are not in the middle of a software update, so that doesn’t seem to be the cause… I am wondering if there is something else that could cause the software to be corrupted so that it would boot correctly… These units are in Japanse which can experience fluctuations in their power grid… Not sure if that could cause this… Please help?!.. Thanks!

You provided very little info. What device is this fir example? Cobra? Emx? What errors?