Secure my device
Secure my device
Lock the device screen, set and change security lock, and locate device.
INSTRUCTIONS & INFO- To lock the screen, press the Power/Lock key.
- To unlock, press the Power/Lock key.
Note: To wake the screen using Knock On, tap the screen twice. To enable this feature in settings, go to Settings > General > Gestures > Knockon
- Touch and drag the screen in any direction.
- To enable and use Knock Code, swipe down from the Notifications bar.
- Tap the Settings icon.
- Under the Display tab, tap Lock screen.
- Tap Select screen lock.
- Tap Knock Code.
- Follow the on-screen instructions.
- Tap the code to unlock.
Note: To learn more about requesting a device unlock for your AT&T mobile device, 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 to unlock your SIM card.