Turn GPS on or off
Turn screen lock on or off
Turn mobile phone on and off
You can adjust the screen brightness to your surroundings.
Find "Brightness level"
Slide your finger downwards starting from the top of the screen.
Tap the settings icon.
Tap Brightness level.
Adjust screen brightness
Tap the indicator next to "Adaptive brightness" to turn automatic brightness on or off.
Drag the brightness indicator right or left to select the required brightness level.
Return to the home screen
Tap the Home key to return to the home screen.
Tap anywhere to dismiss
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