This article describes how to lock and unlock the screen.
INSTRUCTIONS & INFO
To lock the screen, press the Power/Lock key. Note: For GoPhone Users: Your device will have a different home screen showing ‘To check your data balance, go to att.com/mygophone’
To unlock the screen, press the Power/Lock key.
Touch and hold the Lock icon.
To set a security PIN code, tap Settings.
Scroll to, then tap Lock Screen (PIN).
Tap the Lock Screen PIN required switch.
Enter the desired PIN.
Re-enter the PIN.
To unlock the device with a PIN, from the lock screen, enter the required PIN.