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You can adjust the screen brightness to your surroundings.
1. Find "Display"
Slide two fingers downwards starting from the top of the screen.
Press the settings icon.
2. Adjust screen brightness
Press Adaptive brightness.
Press the indicator next to "Adaptive brightness" to turn the function on or off.
Press arrow left.
Press Brightness level.
Drag the brightness indicator right or left to select the required brightness level.
3. Return to the home screen
Slide your finger upwards starting from the bottom of the screen to return to the home screen.