PUK is the code required to unlock a GSM SIM card that has disabled itself after an incorrect PIN code was entered 3-5 times in a row. If an incorrect PUK code is entered a certain number of times ...

A PUK code for a SIM card, which stands for Personal Unblocking Key, is an eight-digit code that enables a blocked SIM card to be unlocked.

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.

O2 is offering users a quick and easy way to unlock mobile phones with a personal unblocking code (PUK) which they can get online simply by typing their mobile number into the O2 website.

Get the PUK Code of your Reliance Jio SIM card from the simple steps that we have mentioned over here.

The crooks accessed the full names and phone numbers of subscribers, Orange said on Wednesday. Perhaps even more concerning, the attackers got SIM card numbers and personal unlocking key (PUK) codes.

You need to call your Carrier and they can provide the PUK code. If you made more then 8 attempts then the card could be permanently locked in which case you would have to buy another SIM card ...