1. From the home screen, swipe down from the top of the screen to access the Notification menu.
   
2. Tap the Settings icon.
   
3. From the Device tab, tap Display.
   
4. To change the brightness, tap Brightness.
   Note: To change projector brightness, see the projector settings topic.
   
5. Touch and drag the Slider to the desired adjustment.
   
6. To change the screen timeout, tap Sleep.
   
7. Tap the desired option.
   
8. To turn the screen lock on or off, tap the Auto-rotate screen checkbox.