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.

Forgetting your SIM card PIN can be frustrating, especially when you rely on your phone for communication and other services. The good thing is that retrieving your Safaricom PUK (PIN Unlocking ...

When you enter the wrong PIN more than three times, your SIM card will be locked. This is a security measure to prevent people from guessing your PIN. You'll need a PIN Unlocking Key (PUK ...