1. From the home screen, press the Right soft key.
   
2. Scroll to the 'Settings' icon, then press the Center nav key.
   
3. Scroll to 'Display', then press the Center nav key.
   Note: Alternatively, press '2' on the keypad.
   
4. Scroll to 'Light Settings', then press the Center nav key.
   Note: Alternatively, press '3' on the keypad.
   
5. To adjust screen brightness, scroll to 'Brightness', then press the Center nav key.
   Note: Alternatively, press '1' on the keypad.
   
6. Adjust brightness as desired, then press the Center nav key to save changes.
   
7. To change the screen timeout, scroll to 'Backlight Time', then press the Center nav key.
   Note: Alternatively, press '2' on the keypad.
   
8. Scroll to 'On', then press the Center nav key.
   
9. Scroll to the desired time, then press the Center nav key.
   
10. Press the Left soft key to save.