Samsung Galaxy J4 User Manual page 37

Basics
Icon Meaning
Flight mode activated
Error occurred or caution required
Battery charging
Battery power level
Lock screen
Pressing the Power 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 Power key or double-tap anywhere on the screen to turn on the
screen.
Locked screen
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