Samsung Galaxy Tab A User Manual page 247

4. When prompted, draw the screen unlock pattern again, and then tap Confirm.
 The screen lock is set.
If you fail to draw the correct unlock pattern on the screen after five attempts, you will be

prompted to wait for 30 seconds before you can try again.
Note: Tap Secure lock settings and tap On/Off next to Make pattern visible if you do not want the
unlock pattern to display on the screen when you unlock it.
Note: To change your unlock screen pattern, from home, tap Apps
> Screen lock type.
and Security
Use a Screen Unlock PIN
1. From the Screen lock type menu, tap PIN.
Personal Settings
> Settings > Lock Screen
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