Prior to iOS 11, you could enable automatic backlight brightness adjustment directly in the Settings app. To do this, it was enough to go to the “Display & Brightness” section and move the slider.

But starting with iOS 11, setting auto-brightness takes time, and not everyone will immediately understand how to do it. In this article, I’ll show you how to change the iPhone’s auto-brightness feature in iOS 11.

How to Turn Off Auto-Brightness on iPhone with iOS 11?

Now this simple action requires several steps:

  • Go to Settings -> General -> Accessibility -> Display Accomodations;
  • Here uncheck the mark “Auto-Brightness”.

How to Turn Brightness Down on iPhone?

Everything is very simple:

  • To do this, it was enough to go to the Settings -> Display & Brightness section;
  • Move the slider to the bottom of the indicator.

Why Brightness Doesn’t Change So Fast?

Why did Apple take the “Auto Brightness” control so far? The main reason is saving battery power in the iPhone. Apple has hidden the “Auto-Brightness” switch so that users are less likely to disable this feature, because even the description says: “Turning off auto brightness can reduce battery life.”

A very convenient feature, however, it does not always work correctly. Sometimes you need to make minimal changes to the settings, but with the release of iOS 11 you will have to do a few steps. If you, for example, watch a long film, it will be very inconvenient.

Read more: How to Fix MacBook Screen Flickering?

Of course, all this can be called ordinary nit-picking. Nevertheless, for people who are accustomed to setting the brightness on their own, placing this function in such an uncomfortable, completely non-intuitive menu will be an unpleasant surprise.


It is worth noting that the Apple version of the Auto Brightness feature is very convenient. Like Android, iOS has a slider for customization, but instead of fixed brightness, it sets its approximate range. This means that even if you set the brightness to a low level, the screen will still be well lit in dazzling sunlight.

It’s the best time to ask questions and give us your feedback in comments.


Hi there! My Name is Vincent Lago! My goal is to share insightful reviews, guides, and manuals for people looking to know more about current solutions for Apple hardware and OS. I have years of technological background knowledge including owning a custom iMacs & PCs which was using for different types of business. And now, I want to share my experience with you.

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