Look, those error codes are just a joke the engineers had for fun. They’d scribble a little ASCII thing in the firmware just to see if someone was digging too deep. No real mystery, just a way to remind themselves that they were playing with the wrong tool. So stop chasing ghosts. If you really want a clue, pull the code out, run it through an old-school decoder, but chances are you’ll just end up with a bunch of nonsense and a laughing track.