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Turn screen lock on or off : Samsung Galaxy J3 (2016)

You can lock the phone screen and keys to avoid activating your phone by mistake.

1. Turn on the screen lock

Briefly press On/Off.

2. Turn off the screen lock

Briefly press On/Off and slide you finger across the screen.

3. Set automatic screen lock

Slide your finger downwards starting from the top of the screen.
Press the settings icon.
Press Display.
Press Screen timeout.
Press the required setting.

4. Return to the home screen

Press the Home key to return to the home screen.