Secure My Device

Secure My Device

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 from the AT&T network.



  1. SET UP A SECURE SCREEN LOCK: Swipe down from the Notification bar, then select the Settings icon.
    Note: To wake the device or put the screen to sleep, press the Power/Lock button. You can also use KnockON. When the device is locked and sleeping, double-tap the center of the screen to wake up the screen. To lock the screen, double-tap an empty area on the Home screen or the Notification bar in any screen (except on the camera viewfinder).
    device 5231/9007010_01.jpg
  2. Select the General tab, then select Lock screen & security.
    device 5231/9007010_02.jpg
  3. Select Select screen lock, then select the Fingerprints switch.
    Note: For this demonstration, Fingerprints was chosen. If you set a Pattern lock and forget it, you will have to reset your device. See the Reset Device tutorial for alternate reset instructions.
    device 5231/9007010_03.jpg
  4. Review the Add your fingerprint prompt, then select NEXT
    device 5231/9007010_04.jpg
  5. Select the desired back up screen lock type.
    Note: For this demonstration, Pattern was chosen
    device 5231/9007010_05.jpg
  6. Review the Secure start-up prompt, then select the desired option. Select NEXT.
    device 5231/9007010_06.jpg
  7. Draw your desired pattern, then select NEXT. Repeat the pattern to confirm, then select CONFIRM.
    device 5231/9007010_07.jpg
  8. Select desired Lock screen notification setting, then select OK.
    Note: To change lock screen notifications, swipe down from the Notification bar > select Settings icon > General tab > Apps & notifications > Notifications > Lock screen > choose the desired option.
    device 5231/9007010_08.jpg
  9. Follow the prompts to add your fingerprint, then select OK to continue or select ADD MORE to add another fingerprint. The fingerprint sensor is located on the Power/Lock button.
    device 5231/9007010_09.jpg
  10. LOG IN USING THE SECURITY LOCK: Press the Power/Lock button located on the back of the device. Place and hold your finger on the Power/Lock button.
    device 5231/9007010_10.jpg
  11. ADJUST THE SCREEN LOCK TIME: From the General tab in Settings, select Lock screen & security > Secure lock settings > Lock timer > select the desired option.
    device 5231/9007010_11.jpg
  12. CHANGE THE SECURITY LOCK TYPE: From the Lock screen and security screen, select Select screen lock > enter your back up secured lock > select the desired screen lock type and follow the prompts to complete set up.
    Note: 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.
    device 5231/9007010_12.jpg

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