Locked out with no service! I was fiddling with the lock your SIM card features and locked it, but the password I used now will not open it, and it is locked with no service, screen says screen is PUK locked and is asking for  an 8 digit password to change the PIN code, which the one I typed when trying to set it was only 4 digits. I think I must have clicked change password right before it locked me out. What do I do now?
Some SIM cards have PUK codes printed on the punch out cards that the SIM card came from.
T-Mobile for example has PUK code printed on the plastic punch out.