[Jason Gin] wanted to reuse the SIM card that came with a ZTE WF721 ... he was able to work his way backwards and determine the unlock command and its PIN code. It turns out the PIN was even ...
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.
Enter your ID number. You will receive an SMS with the PUK to unlock the SIM card. What to do if you forgot your Safaricom SIM card PIN? If you forget your SIM card PIN, you will need to enter it ...