Basics
Draw a pattern by connecting four dots or more, and then draw the pattern again to verify it. Set a backup unlock PIN to unlock the screen when you forget the pattern.
Setting a PIN
On the Applications screen, tap Settings →Device →Lock screen →Screen lock →PIN.
Enter at least four numbers, and then enter the password again to verify it.
Setting a password
On the Applications screen, tap Settings →Device →Lock screen →Screen lock → Password.
Enter at least four characters including numbers and symbols, and then enter the password again to verify it.
Unlocking the device
Turn on the screen by pressing the Power button or the Home button, and enter the unlock code.
If the unlock code is forgotten, take the device to the dealership where you purchased the car to reset it.
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