1. To change Display settings, swipe down from the top of the screen.
   
2. Swipe to and tap Rotation to lock/unlock the screen orientation.
   
3. To access additional display settings, tap the Settings icon.
   
4. Scroll to and tap Display.
   
5. Tap the Auto brightness checkbox to toggle automatic brightness on/off.
   
6. Adjust brightness level by sliding the slider to your Desired brightness.
   
7. Tap Screen timeout to adjust screen timeout.
   
8. Tap the Desired option.