- From the home screen, swipe down from the Notification bar.
- Tap Screen rotation to lock/unlock the screen orientation.
- To access additional display settings, tap the Settings icon.
- Swipe to the MY DEVICE tab, then tap Display.
- To access brightness settings, tap Brightness.
- Drag the Brightness slider left or right to adjust the brightness manually.
- To change the screen timeout, tap Screen timeout.
- Tap the desired option.