You can unlock a SIM card if you have the correct code. Subscriber Identity Modules (SIM Cards) have built-in security to stop unauthorized use of the phone number. This can sometimes be as simple as the factory default '0000' four digit Personal Identification Number (PIN) code, or it can be a more elaborate four- to eight-digit code set by the user. Sometimes it isn't even set, and the SIM Card can be hot-swapped from phone-to-phone without entering a PIN number. However, the SIM card will always have a Personal Unblocking Key (PUK Code). A PUK Code is set at the factory and is unique to each SIM card. This code can be used to unlock a SIM card if you don't have the PIN.
Step Contact your cell-phone carrier to obtain the PUK Code. How To Tell If My Sprint Phone Is Unlocked. The PUK Code is retained by the carrier who supplied the SIM card.
A PUK Code is set at the factory and is unique to each SIM card. This code can be used to unlock a SIM card if you don't have the PIN. Tansee Ipod Transfer Keygen. Contact your cell-phone carrier to obtain the PUK Code. The PUK Code is retained by the carrier who supplied the SIM card. Locate the SIM card slot and unlock the holder. (Unlocking the holder will be unnecessary for some phones as it will be slide in. Please check your phone manual.) 3. Flip open the holder and place the SIM card according to the holder's shape. It should fit only one way. Close and lock the holder to secure the SIM card in the phone. Sep 08, 2016 In other words: If you have a recent iPhone with 4G LTE service, you will not need to unlock your phone. If you have a locked 3G World Device phone with Verizon, you can use unlock code 000000 or 123456 or call 800-922-0204 for help.
Best Price On Iphone 4s Unlocked. You may find it easier to call the carrier--often for free on the phone--or register your details and SIM card at the carrier's website and obtain the PUK code that way. Step Attempt to unlock the SIM card using the phone. Enter a sequence of four digits three times.