Log into att.com, and go to Account overview. If you have more than one account, select wireless from the dropdown at the top.
Select My wireless.
Under MY DEVICES & FEATURES, scroll to and select the device that needs a PUK code.
Select Manage device & features.Under See device options, select Get your PIN unlock key (PUK).
The PUK and instructions for your device display.
Enter the eight-digit PUK code in your device.
Follow the prompts to create a new PIN code.
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