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.
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