- From the home screen, tap Apps.

- Swipe to, then tap Settings.

- Scroll to "Device", then tap Display.

- Tap Screen timeout.

- Tap the desired Screen timeout time.

- Tap Brightness.

- Touch and drag the slider to increase or decrease the screen brightness, then tap OK.
Tap the Automatic brightness checkbox to toggle the automatic screen brightness feature.
Note: If Auto brightness is enabled, it will be disabled when the brightness is adjusted.
- Tap the Auto-rotate screen Checkbox to enable or disable auto-rotation.

