1. Swipe down from the top of the screen with two fingers to reveal the menu.
   
2. Tap SETTINGS.
   
3. Scroll to, then tap Display & gestures.
   
4. To adjust the screen timeout duration, tap Screen timeout, then tap the desired option.
   
5. To adjust the screen brightness, tap Brightness.
   
6. To lock or unlock screen rotation, tap Auto-rotate screen.