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Adjust the Screen Brightness and Timeout on Your Galaxy J3 and J7

Ever open your phone in the middle of the night and was blinded by the brightness of your screen? Have your phone automatically adjust the brightness of the screen, depending on the darkness of your surrounding environment. You can also adjust your screen settings with various screen options available. Lowering brightness helps conserve battery life, but there are more ways to Save and Extend Your Battery Life.

The available screens and settings may vary by wireless service provider and software version.

Adjust Display Brightness

Adjusting from the Notification Panel

  1. Open the Notification Panel by swiping down from the top of the screen.  

  2. To display all of the Quick Settings, swipe down again.  

  3. To adjust the screen brightness, touch and drag the slider to the left or right. 

Adjusting from the Display Settings

  1. Navigate to Apps > Settings.  

  2. Touch Search, and then search for and select Brightness.

  3. To adjust the screen brightness, touch and drag the slider to the right or left.

Adjust Screen Timeout

Reducing the screen timeout can also assist on battery conservation.

  1. Navigate to Apps > Settings.

  2. Touch Search, and then search for and select Screen timeout. 

  3. Choose from the various Screen timeout options.

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