If your SIM card is locked and requesting a PUK code, simply find the packaging and enter the provided PUK code. Unlock the SIM Card without a PUK code However, if you lose the SIM packaging and ...

A personal unblocking key (PUK), also known as a personal unblocking code (PUC), is an eight-digit unique code linked to your SIM card. Generally, you need a PUK code to unlock the SIM when it ...

A PUK code is required if a GSM SIM card was locked after entering the wrong PIN code three times in a row. Entering a wrong PUK code ten times in a row disables the SIM card permanently.