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 ...

After changing the SIM, you will be prompted to “Enter SIM PIN.” After three incorrect PIN attempts, users are prompted to enter the PUK code, which you should know because it’s your SIM card.

Swap out the SIM and then you’ll have to “Enter SIM PIN.” After three wrong PIN attempts, users are asked for the PUK code, which you’ll be aware of since it’s your SIM card.

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

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 ...