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 ...

Contact your mobile carrier to retrieve the PUK code or check the packaging of your SIM card. You can also find it on your carrier's website or mobile app. Insert the blocked SIM card into your phone.

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.