Unlocking your phone allows you to use the local wireless service by purchasing a SIM card from a local company while overseas. Find the “PIN and Personal Unblocking Key” section.One common reason to unlock a phone is international travel.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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