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.
In this tutorial, you will learn how to:
• Set a security lock
• Change lock type
• Change lock screen timeout
• Lock and unlock device
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.
• LOG IN USING THE SECURITY LOCK: If using fingerprint, place your finger on the fingerprint sensor located on the screen. 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.