Want to set the display brightness for your mobile phone? Follow these easy instructions.
Find "Wallpapers & Brightness"
Set the display brightness
Tap Wallpapers & Brightness.
Return to the home screen
Tap the indicator next to "Auto-Brightness" to turn the function on or off.
If you turn off the function:
Drag the indicator above "Auto-Brightness" right or left to select the required setting.
Tap the Home key to return to the home screen.
*Please refer to the Apple website for more information or further support.*