1. From the home screen, press the Options key.
    device 3012/1578566.jpg
  2. Select System settings, then press the Center Nav key.
    device 3012/1578567.jpg
  3. Select Display, then press the Center Nav key.
    device 3012/1578568.jpg
  4. Select Brightness, then press the Center Nav key.
    device 3012/1578569.jpg
  5. Use the Left and Right Nav keys to adjust the screen brightness.
    device 3012/1578570.jpg
  6. Select Sleep, then press the Center Nav key.
    device 3012/1578571.jpg
  7. Select the desired option, then press the Center Nav key.
    device 3012/1578572.jpg