Lock or unlock your display, set a screen security lock type (pin, password, pattern, or fingerprint), get your PUK code, or request your device be unlocked.
To learn more about requesting a device unlock for your AT&T mobile device so that it can operate on another compatible wireless network, visit www.att.com/deviceunlock. If your device is locked and is requesting a "PUK" code, click here for instructions on how to obtain your PUK or PUK2 code.Â
In this tutorial, you will learn how to:
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• Set a security lock
• Change lock type
• Change lock screen timeout
• Lock and unlock deviceÂ
• Request your device be unlocked from the AT&T network
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1. From the Security screen, select the  Settings icon next to Screen lock.
2. Select Lock after screen timeout, then select the desired timeout duration.Â
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• LOG IN USING THE SECURITY LOCK: If using fingerprint, place your finger on the fingerprint sensor located on the Power/Lock button. To use your backup screen lock, from the lock screen, swipe up from the bottom of the screen then enter your backup screen lock.
• LOCK DEVICE: Press the Power/Lock button located on the right side of the device.