1. From the home screen, press the Menu key.
   
2. Tap Settings.
   
3. Under My device, tap Display.
   
4. To adjust the amount of time before the screen powers off, tap Screen timeout.
   
5. Tap the desired option.
   
6. To adjust screen brightness, tap Brightness.
   
7. Touch and drag the Brightness slider to adjust.
   
8. Tap OK.
   
9. To toggle screen rotation on/off, touch and drag down from the top of the screen to reveal the Notifications menu.
   
10. Tap Screen rotation to toggle on/off.
    Note: A green icon indicates the item is toggled on.