Select Wireless from the myAT&T tab at the top of the page.
Click Unblock SIM Card.
A new page will open, containing the PUK code for your phone. Enter the code on your phone's screen to unblock the SIM and create a new PIN.
Unblock SIM Card
Enter the eight-digit PUK code on the phone, then press OK/Yes. Note: Some Motorola phone users need to enter **05* if "enter PUK" is not already displayed. After entering **05*, enter the eight-digit PUK code and press OK.
Select a new PIN code, then press OK/Yes.
Re-enter the PIN code, then press OK/Yes.
If the codes were entered successfully, the phone is ready for use.
If the incorrect PUK code is entered 10 times in a row, the SIM card becomes permanently locked and a new SIM card must be purchased. If the device is requesting PUK2, call Customer Care at 800-331-0500.
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