From the Home screen, tap Settings.Step 1/6
Tap Display & brightness.Step 2/6
Tap Sleep.Step 3/6
Select your preferred screen timeout duration.
Note: Decrease the screen timeout to help extend your phone's battery life.Step 4/6
Select your preferred brightness level.
Note: Lowering the screen's brightness can help to extend your phone's battery life.Step 5/6
- Step 6 of 6:
You've completed the steps!Step 6/6