Samsung SM-F700F/DS User Manual page 45

Basics
Lock screen
Folding the device or pressing the Side key turns off the screen and locks it. Also, the screen
turns off and automatically locks if the device is not used for a specified period.
To unlock the screen, swipe in any direction when the screen turns on.
If the screen is off, press the Side key to turn on the screen. Alternatively, double-tap the
screen.
Locked screen
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