My nokia e63 turned itself off due to low battery and now won't start up. So I took the sim card out and it still won't start even while charging and everything. I tried hard reset and everything and nothing. So I decided it is dead and tried to put the sim card into a different phone. I tried about 6 different phones and none of them worked all giving some sort of sim error (some are like 10 years old so I don't think they are all locked). I guess it is possible that the phone corrupted the sim while stuffing up, but seems like a bit of a coincidence.