If your SIM card gets locked, you need a PUK code. PUK stands for Personal Unblocking Key. This code is much longer than a PIN. You get the PUK code from your mobile service provider. Do not try to guess this code. If you enter it wrong too many times, the SIM card can be permanently disabled. Therefore, it is important to contact your provider. They can give you the right code. This ... aolists.com