Learn how to lock and unlock on your Samsung Galaxy Tab 3. By default, the device locks automatically when the screen times out or you can lock it manually. You can unlock the device using one of the default Unlock screens or, for increased security, use a personal screen unlock pattern.
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You can customize the Lock screen and set the type of Screen Unlock you want to use (Face unlock, Pattern, PIN, or Password).
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This guide will work on all Samsung Galaxy Tabs; including Samsung Galaxy Tab 3 7.0, Samsung Galaxy Tab 3 8.0 and Samsung Galaxy Tab 3 10.1.