Secure My Device

Secure My Device

Lock or unlock your display, set a screen security lock type (pin, password, pattern, voice recognition, or fingerprint), get your PUK code, or request your device be unlocked from the AT&T network.


Prenote info

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 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.
  1. SET UP A SECURE SCREEN LOCK: From the Settings screen, select Security & location. Select Screen lock.

    Note: To access the Settings screen, swipe down from the Notification bar then select the Settings icon

    Step 1

  2. Select the desired screen lock type.

    Note: If you choose Pattern lock, you will have to reset your device if you forget your Pattern lock. See the Reset Device tutorial for alternate reset instructions. Read the Unlock with fingerprint prompt, then select CONTINUE. For this demonstration, Pattern was selected.

    Step 2

  3. Review the Secure start-up prompt, then select the desired option (YES or NO).

    Step 3

  4. Draw your pattern, then select NEXT. Draw it again, then select CONFIRM.

    Step 4

  5. Select desired display option for notifications, then select DONE.

    Step 5

  6. LOG IN USING THE SECURITY LOCK: From the lock screen, draw your security pattern.

    Step 6

  7. CHANGE LOCK SCREEN TIMEOUT: From Security & location setting screen, select the Settings icon next to Screen lock.

    Step 7

  8. Select Automatically lock, then select the desired timeout duration.

    Step 8

  9. CHANGE LOCK TYPE: From the Settings screen > Security & locationScreen lock > enter pass code > desired screen lock type > follow the prompts to complete set up. 

    Step 9

  10. ENABLE/DISABLE SMARTLOCK: From the Security & location screen, scroll to and select Smart Lock > enter your pass code > edit Smart Lock settings as desired.

    Step 10

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