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How to Turn On Auto‐Brightness on an iPhone

This How.com.vn teaches you how to allow your iPhone to automatically raise or lower the screen brightness depending on your location's light level.

Steps

  1. How.com.vn English: Step 1 Open your iPhone's Settings.
    Do so by tapping the grey gear icon on one of your iPhone's Home screens (it may be in a folder entitled "Utilities").
  2. How.com.vn English: Step 2 Tap Display & Brightness.
    It's in the third group of options.
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  3. Step 3 Slide the grey "Auto-Brightness" switch right to the "On" position.
    It should turn green, signifying that your iPhone's auto-brightness feature is now active. You shouldn't have to change your screen's display brightness from now on.
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      Tips

      • If the switch next to "Auto-Brightness" is already green, your iPhone's auto-brightness feature is currently enabled.
      • You can override auto-brightness by opening the Control Center (swipe up from the bottom of the screen) and swiping the brightness slider left or right.
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      Warnings

      • The auto-brightness feature can cause your battery to drain faster than usual if you're used to keeping your screen dim.
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      About this article

      How.com.vn English: Jack Lloyd
      Written by:
      How.com.vn Technology Writer
      This article was co-authored by How.com.vn staff writer, Jack Lloyd. Jack Lloyd is a Technology Writer and Editor for How.com.vn. He has over two years of experience writing and editing technology-related articles. He is technology enthusiast and an English teacher. This article has been viewed 1,787 times.
      How helpful is this?
      Co-authors: 6
      Updated: May 25, 2021
      Views: 1,787
      Article SummaryX

      1. Open Settings.
      2. Select Display & Brightness.
      3. Slide the Auto-Brightness switch right.

      Did this summary help you?

      Thanks to all authors for creating a page that has been read 1,787 times.

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