If your iPhone keeps dimming automatically, here’s how to stop it

As a battery saving measure, your iphone automatically adjusts the brightness of your screen depending on the light in your environment. The less light around you, the dimmer your screen becomes, but that may not be what you want.

Even if it’s dark, you may want to keep your iPhone’s brightness up, as it helps you see what’s on the screen better, whether you’re reading an article or watching a movie. Fixing this problem isn’t always as simple as turning off an automatic brightness setting, though, though it’s a good start.

In this guide, we’ll show you two settings you should disable to help prevent your iPhone from automatically dimming. And how your iPhone could adjust its brightness even when those two settings are disabled, if you’re not careful.

While you’re here, you should also check out the most annoying things about your iPhone (and how you can fix them). And these 10 hidden features of iOS 16 that will make your iPhone experience much better.

First, disable auto brightness

Yes, this may seem a bit obvious, but the first thing you need to do is make sure you have auto-brightness turned off in your settings. The feature is self-explanatory: it automatically adjusts the brightness based on the light in your environment. But if you want to prevent your screen from always trying to adjust, you should disable this feature.

In the Settings app, go to Accessibility > Screen size and text and deactivate auto brightness at the end of the page. You would think this setup would exist in screen and brightnessso it’s not uncommon for auto-brightness to be enabled without you really knowing it, since it’s hidden in Accessibility.

Automatic brightness settings in iOS

Auto brightness is hidden in accessibility settings.

Nelson Aguilar/CNET

If your brightness continues to adjust automatically, there is another setting you need to turn off.

You should also disable True Tone

if you have a iPhone SE (2nd generation) and laterthe true tone The feature has the ability to measure the color temperature and brightness in your surroundings and then adjust your display to match. True Tone is useful: not only does it help display more accurate colors in various lighting situations, but it’s also easier on the eyes, which you need if you’re constantly reading on your phone.

Again, if you don’t care about the feature, don’t use it, or are just annoyed that your brightness keeps adjusting automatically, you should disable it. In Settingsgo to screen and brightness and deactivate true tone under the Bright header. As long as auto brightness is also disabled, turning off True Tone should prevent your iPhone from automatically adjusting its brightness.

True Tone Settings on iOS

If auto brightness is disabled and your screen continues to adjust on its own, this may be the culprit.

Nelson Aguilar/CNET

However, there’s an exception.

Don’t let your iPhone overheat

Your iPhone has several ways to protect its internal components, and that includes automatically dimming your screen. Even if you have Auto Brightness and True Tone turned off, if your iPhone is overheating will automatically adjust the intensity of the screen.

According to AppleTo help prevent this from happening, you should use your iPhone in temperatures between 32 and 95 degrees F (zero and 35 degrees C) and store it in temperatures between 4 and 113 degrees F (20 below zero and 45 degrees C). If you leave your iPhone in your car or on the sidewalk on a hot day, there’s a good chance it will overheat, causing your screen to dim automatically.

An overheated iPhone

You will see a warning message if your phone gets too hot.

Jason Cipriani/CNET

However, overheating does not happen just because of a sunny day. A bad battery could cause your iPhone to overheat: Go to Settings > Drums > Battery status and charge and check if your battery needs to be replaced. Another reason could be faulty software – go to Settings > General > Software update and more sure to always be on the latest update to deal with bugs and software problems.

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