PUK codes help to keep users safe if the SIM or device is lost.Consider it an extra layer of password protection for your SIM card.Here are some main reasons for its existence. A SIM PIN and PUK are the carrier’s way of protecting its users. According to the carrier, you might have one PUK code or multiple ones (generally 2).Įver wonder why the PUK code is needed in the first place.The PUK code is unique to your device/ SIM card.It might differ according to the SIM card carrier. The digits are usually 7/8 digits long.The card will become unusable, and the users will have to replace the card itself. Suppose the card is blocked by too many wrong attempts (generally ranges from 3-10) depending on the carrier.Find the “PIN and Personal Unblocking Key” section.Go to Account > My devices > Device overview.Select “Manage my device” and “Get your PIN unlock key (PUK)”.Click “My wireless” and “My devices & add-ons” then choose your iPhone or iPad that needs a PUK code.

You can request your PUK code by logging into your mobile account: If you permanently block the SIM card by entering the wrong PUK codes too many times, contact your carrier.Only your carrier can give you the PUK code. To unlock your SIM card, you will need to get the PIN Unlock Key (PUK) code to reset the SIM PIN.If you can locate this card, then use it. Your PUK code may be located on the plastic container tray which housed your SIM card.If you enter the wrong PUK code 10 times, your SIM card will permanently be blocked. Now your device will prompt you to enter a PUK code. So what can you do when you have forgotten your PIN or blocked the card by entering the incorrect PIN too many times? If the incorrect PIN code is entered too many times (3 times), your SIM card will be blocked. You will need to know your current PIN code to change it. On your iPad, go to Settings > Mobile Data > SIM PIN.On your iPhone, go to Settings > Cellular > SIM PIN.You won’t be able to enter your device until the correct code is entered. When you turn this on, your iPhone or iPad will ask you to enter it after you turn on your device or the SIM card is removed. This article explains how you can use a SIM PIN on your iPhone or iPad. You can use a SIM PIN on devices that has a SIM card. However, they do not protect your SIM card. If your iPhone or iPad supports it, you can use Touch ID or Face ID. You can use a passcode to protect your data. A SIM PIN will protect your SIM card from being used on other mobile devices for phone calls, messages, or cellular data. In other words, if you insert your locked SIM card into a different device, the new device will prompt you to enter your PIN. You can lock your SIM card with a PIN code so that you can protect your SIM Card from unauthorized use if it is lost or stolen.

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