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