I have put a code into my nokia 6030b i have lost the code and can't remember it. i have tryed all of my code that i know. information below proves the model of the phone. Nokia 6030b T-mobile Type-Rm-75 IMEI-010892/00/073121/4 FCC ID:QTLRM-75
3360606620 - Security code If it's a pin code, we didn't guess it so we don't know it. If it's a PUK code, call your network for that one.