“Is anyone else having these issues? I keep setting my iPhone to brighter and it automatically moves it back down to a lower brightness after updating to iOS 11. Can anyone help me fix this problem soon? Thanks!”
As the issue demonstrated above, many users with the old iPhone devices, like iPhone 6, 6S, 7, 7 Plus have found some problems are occurring on there devices after updating to iOS 11 on the day it was released. The issues are disparate but all related to iOS updating, such as iPhone screen recording not working, iPhone live wallpaper won’t display properly or iPhone brightness keeps changing we will discuss in this post. Keep reading to see how to fix iPhone brightness keeps dimming or going up/down by itself in iOS 11.
5 effective fixes to iPhone brightness keeps changing in iOS 11/11.1/1.2
Based on what we’ve known, the iPhone brightness keeps changing in iOS 11 is mostly caused by Auto-Brightness feature on iPhone or the iOS bugs problem. Try to fix it with methods below.
1. Disable auto-brightness on iPhone
If you have enabled auto-brightness on your iPhone in iOS 11, your iPhone will use a light sensor to adjust brightness based on your surroundings, which means the brightness will keep changing by itself. You can disable this ambient-light sensor by:
Going to “Settings” > “Display & Brightness” > find “True Tone” and turn it off.
2. Reset the brightness
After you have disabled the light sensor mode, you can reset your iPhone brightness to check your iPhone brightness keeps changing or not. Do it in two ways:
- Go to “Settings” > “Display & Brightness” > slide right or left to adjust the brightness based on your own needs.
- Swipe up from the bottom of your iPhone screen to activate the “Control Center” in iOS 11, find the brightness button and adjust it to the best state.
3. Restart your iPhone
If your iPhone brightness still keeps changing in iOS 11 after you have turn off the True Tone feature, you can try to restart your iPhone to fix the issues caused by running cash, like iPhone notification not working in iOS 11.
Restart iPhone 6/7/8: Press and hold the “Sleep/Wake” button until the red slider shows up, then drag the “slider to power off”. After 30 seconds later, press and hold the “Sleep/Wake” button again until the Apple logo appears on your iPhone.
Restart iPhone X: Press and hold both Side button and Volume Down ( or Volume Up) buttons at the same time until you see the slider. Drag the slider to shut down your iPhone X completely. After 30 seconds later, press and hold the “Sleep/Wake” button again until the Apple logo appears on your iPhone.
4. Update to the latest iOS version
If your iPhone brightness keeps going up and down or keeps dimming all the way can be solved by using the methods below, you can update to the latest iOS version to troubleshoot if the matter is iOS-related.
Go to “Settings” > “General” > “Software Update” > check whether there is a new version or not. If yes, tap “Download and Install” to start to install the latest iOS 11 version on your iPhone.
5. Restore your iPhone
The final way deserves to try is to restore your iPhone from a backup. You can restore your iPhone from iCloud backup or restore from iTunes backup. To make sure everything is alright, we suggest you use the latter way. Go to check how to restore iPhone from iTunes backup on another page.
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Step 2. Tick the box next to “Select All” to back up all files from iPhone to computer > Set the destination on computer > Click on “One-Click Backup” to start the backup process.
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Your iPhone’s display keeps adjusting the brightness on its own and you’re beginning to get annoyed. This is known as Auto-Brightness, and it can easily be disabled on iPhones running iOS 11. In this article, I’ll show you how to turn off Auto-Brightness on your iPhone!
How To Turn Off Auto-Brightness On iPhone
To turn off Auto-Brightness on your iPhone, go to Settings -> Accessibility and tap Display & Text Size. Then, turn off the switch to the right of Auto-Brightness. You’ll know Auto-Brightness is off when the switch is white and positioned to the left.
If you’re more a visual learner, check out our Auto-Brightness video on YouTube. While you’re there, don’t forget to subscribe to our channel. We regularly upload videos about iPhone tips and how to solve common problems!
Should I Turn Off Auto-Brightness?
We generally don’t recommend turning off Auto-Brightness for two main reasons:
- You’ll have to manually adjust the brightness of your iPhone’s display any time it’s too bright or too dark.
- Your iPhone’s battery may drain more quickly if the display is set to a high brightness level for extended periods of time.
If you find that your iPhone’s battery is dying faster after you turn off Auto-Brightness, check out our article for plenty of iPhone battery-saving tips!
How To Turn Auto-Brightness Back On
If you ever want to turn Auto-Brightness back on, the process is exactly the same:
- Open Settings.
- Tap Accessibility.
- Tap Display & Text Size.
- Turn on the switch next to Auto-Brightness. You’ll know it’s on when the switch is green.
Look On The Bright Side
You’ve successfully turned off iPhone Auto-Brightness and now your screen won’t adjust on its own! Make sure you share this article on social media with your family and friends to teach them how to turn off Auto-Brightness on their iPhones as well. If you have any further questions, leave them below in the comments section!
Many iPhone users have been complaining that their brightness is randomly changing by itself and they’re not doing it themselves.
When you look at your iPhone one minute, you notice that the brightness has changed. When you go to another location and look at your iPhone or iPads screen, you see that your brightness has changed.
Why is my iPhone Brightness Changing By Itself?
Your iPhone or iPad screen is changing by itself because of a feature called auto brightness and it can be accessed in the Settings app in brightness.
Auto Brightness was introduced in iOS 6 and it allows your iPhones screen to change depending on the light around you. So, if it was very bright around you, your iPhone or iPads brightness is going to increase. If you’re out on a summers day and you’re directly in the sun, your brightness is going to be all the way up.
If you’re in a dark environment, you’ll notice that your brightness is going to go down. This is because you’ll be able to see the screen more easily since there isn’t much light around you.
If you’re in total darkness, the brightness is going to go all the way down because your iPhone or iPad thinks you’ll have no trouble seeing it.
How to turn off Auto-Brightness on your iPhone:
- Go to Settings.
- General > Accessibility > Display Accommodations.
- Toggle Off Auto-Brightness.
If the switch went from green to white, then it means it’s turned off. After you’ve done this, your iPhone should stop changing the brightness itself regardless of where you are. Once you’ve done this, you can set your iPhone to stay at one specific brightness.
If you set the brightness all the way up, it going to stay this way. So, when you’re in a dark environment, you’re going to have to set the brightness all the way back down. This is the same as if you set the brightness to very low.
Harry Guinness is a photography expert and writer with nearly a decade of experience. His work has been published in newspapers like The New York Times and on a variety of other websites, from Lifehacker to Popular Science and Medium’s OneZero. Read more.
Auto-brightness is a feature designed to save battery life and make your iPhone’s screen easier to read. When you’re somewhere dark, like your bedroom at night, the screen will automatically dim. When you’re somewhere bright, like outside on a sunny day, it’ll crank itself up to maximum brightness.
Auto-brightness is generally pretty good at adapting to changing circumstances, and since the screen is one of the biggest battery drainers on your phone, we’d generally recommend leaving it on. However, if you’re someone who prefers to control it manually, or finds it consistently misses the mark when it comes to the brightness you’re looking for, here’s how to turn it off.
Head to Settings > General > Accessibility > Display Accommodations.
Toggle the Auto-Brightness switch to off.
Now the screen brightness will remain constant no matter the light level of your location. If you want to change the brightness, swipe up from the bottom of your screen to access the Control Center (which just got a big update in iOS 11) and adjust the brightness slider. Just be careful not to blind yourself with a really bright screen at night!
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Harry Guinness is a photography expert and writer with nearly a decade of experience. His work has been published in newspapers like The New York Times and on a variety of other websites, from Lifehacker to Popular Science and Medium’s OneZero.
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You might not like how iOS 13 automatically adjusts your screen brightness. But you can turn the feature off. Here’s how to find it.
The Auto-Brightness feature on your iPhone is a feature that adjusts the display brightness based on the surrounding environment. As ambient lighting conditions vary, and the display will become brighter or less bright. It helps save the battery power used by your phone. But some users might like how it adjusts the brightness of the screen. Sometimes it can reduce it too much, causing the screen to become too dim to see.
The Auto-Brightness feature has been available in iOS for some time. But you might want to manage it on your own via Control Center. But with iOS 13 the setting to turn it on or off isn’t in the location it used to be. Here’s where to find it.
Turn Off Auto-Brightness on iOS
If you want to turn the auto-brightness feature on or off in iOS 13 you’ll need to head to Settings > Accessibility > Display & Text Size.
Next, scroll down to the bottom to find the Auto-Brightness switch and toggle it off.
The main purpose of the Auto-Brightness feature is to help improve the iPhone’s battery life. But if you would rather have more control over how bright or dim your screen is you can turn it off. With it turned off you can simply use the brightness slider in Control Center to manage it. Or, you can go to Settings > Display & Brightness to adjust it.
Just keep in mind that the brighter your screen, the more battery power your iPhone or iPad will require.
Learn how to adjust display brightness and color temperature on your iPhone, iPad, or iPod touch.
Adjust brightness in Control Center
You can quickly adjust brightness in Control Center on your iPhone or iPad:
- On an iPhone X or later, or an iPad with iOS 12 or iPadOS, swipe down from the top-right corner of your display. On an iPhone 8 or earlier, or on an iPod touch, swipe up from the bottom edge of your display.
- Drag the brightness bar up or down to adjust the brightness.
Adjust brightness and color temperature in Settings
- Go to Settings > Display & Brightness.
- Drag the slider to the right or left to adjust the brightness.
From here, you can turn on Dark Mode, which is designed to make the screen easier on your eyes. Dark Mode uses a dark color scheme that works system wide, including with the apps that come with your device and with many third-party apps.
True Tone,* which is on by default, uses advanced sensors to adjust the color and intensity of your display to match the ambient light, so that images appear more natural.
If you turn off True Tone, the display keeps color and intensity constant, regardless of changes in the ambient light.
You can also turn on Night Shift, which adjusts the colors of your display to the warmer end of the spectrum—making the display easier on your eyes. To adjust the color temperature to be warmer or colder, go to Settings > Display & Brightness > Night Shift and use the color-temperature slider.
Some display accessibility settings, including Invert Colors, Grayscale, and Increase Contrast, might turn off True Tone.
About brightness levels
iOS devices use an ambient light sensor to adjust brightness levels based on the light conditions around you. The sensor lowers brightness in dark locations and raises brightness in light locations. The auto-brightness feature is on by default.
When auto-brightness is on, you’ll notice that the brightness slider on your device moves according to changing light conditions.
You can turn auto-brightness on or off in Settings > Accessibility > Display & Text Size. To reset the auto-brightness settings, turn off auto-brightness and then turn it back on.
iPod touch doesn’t support the auto-brightness feature.
- Brightness can affect battery life. To maximize battery life, let auto-brightness adjust your display or dim your screen.
- Use Night Shift to adjust the colors of your display.
- Learn what to do if your display won’t turn on or if you have other screen issues.
* You can use True Tone with these devices: iPhone 8 and later, iPad Pro 12.9-inch (3rd generation), iPad Pro 11-inch, iPad Pro 12.9-inch (2nd generation), iPad Pro 10.5-inch, iPad Pro (9.7-inch), iPad Air (3rd generation), and iPad mini (5th generation).
Keep iPhone brightness from automatically adjusting with a few easy steps.
* This post is part of iPhone Life‘s Tip of the Day newsletter. Sign Up. *
Your iPhone’s Auto-Brightness feature automatically adjusts your screen’s brightness; if you’re in dim lighting, your iPhone screen will automatically dim to match it, and if you’re out in the sun, the screen will brighten again. If you want to stop the adjustment from happening, we’ll show you how to turn the feature off.
- How to Turn Off Auto-Brightness (& Turn It Back On Again)
- Adjust Brightness from the Control Center
- Adjust Brightness from Settings
How to Turn Off Auto-Brightness (& Turn it Back On Again)
This feature is on by default, but if you don’t like your screen’s brightness changing with your environment, we’ll show you how to turn auto-brightness off. If you’ve accidentally turned it off and would like to reactive it, you can just as easily do that, too!
Go to Settings.
Adjust Brightness from the Control Center
Before you change your brightness settings, one thing to consider is that setting the screen to be permanently brighter will affect your battery life. Keeping your screen bright uses a lot of battery, and if you want it bright all the time, your battery won’t last as long. Conversely, if you want to extend your battery life, setting your screen to be dimmer can help.
Swipe down from the top-right corner of your screen.
Adjust Brightness from Settings
- Go to Settings.
Now you know the ins and outs of adjusting your screen brightness, and can choose the settings that fit your lifestyle best. Just remember that one of the biggest iPhone battery drains is a bright screen that’s on a lot, so keep that in mind when making your adjustments.
Elisabeth Garry is a Feature Web Writer for iPhone Life. Formerly of Gartner and Software Advice, she has four years’ experience writing about technology for everyday users. As a former college writing instructor, she is passionate about effective, accessible communication, which is perhaps why she loves helping people make the best use of the strongest communication tools they have available: their iPhones. She has a degree in Russian Literature and Language from Reed College.
When she’s not writing for iPhone Life, she’s probably either reading (19th-century Russian literature or fantasy novels), writing fiction, or spending time with her adorable dog, Moosh.
Auto-brightness means you shouldn’t need to change your iPhone screen brightness yourself. Here’s what to do if it isn’t working.
Auto-brightness ensures your iPhone's screen brightness levels adapt automatically according to the light around you. For example, when you step out in the sun, the brightness increases. And inside a room, it decreases. When your iPhone's auto-brightness feature doesn't work, it can spoil your user experience and even consume more battery.
If auto-brightness isn't working on your iPhone, you can use these solutions to fix it. Once that's done, it should be more comfortable to use your iPhone during the day, night, and any other times.
1. Clean Your iPhone's Notch Area
The ambient light sensor is at the top of your iPhone screen. Body oils, sweat, and other such gunk may stick to this sensor when holding the phone to your ear during long calls. Due to this, it may stop your iPhone's ambient light sensor working, which is what's responsible for adjusting the screen brightness according to your surroundings.
To fix this, use a clean, dry cloth to wipe the top portion of your iPhone screen. After this, auto-brightness should work fine. If not, follow the remaining solutions below.
2. Restart Your iPhone
If you haven't turned off your iPhone in a while, it can cause a few problems, like auto-brightness not working correctly. To fix this, simply restart your iPhone. After the device powers on, everything should work as well as it usually does.
3. Enable and Disable Auto-Brightness
Another quick solution to fix the auto-brightness problem on your iPhone is to turn this feature off and on. Here's how to do that:
The iPhone and iPad both offer an auto-brightness option in the iOS settings, which uses each device’s ambient light sensor to detect the light levels in the room and automatically adjust the display brightness accordingly.
Some users find this annoying while others don’t appreciate their devices adjusting the brightness for them. If that’s how you feel, keep reading! In this article, we’ll show you how to turn off the auto-brightness feature on iPhones and iPads.
What is the Auto-Brightness Feature?
In brighter rooms or outdoors, iOS increases the display brightness. In darker environments or at night, it will lower the brightness.
This is handy because it generally keeps your iPhone or iPad screen’s brightness appropriate for the lighting conditions without requiring you to go into Settings or visit Control Center.
It also helps save battery life, as your device’s display is often the largest battery life eater and auto-brightness prevents the screen from being brighter than it needs to be.
But sometimes iOS’s “guess” at what the iPhone’s brightness should be isn’t what you want. For example, it may be quite dark in a room but you want to have maximum brightness for a particular app or movie. Or you may want to reduce screen brightness to save on battery life in an otherwise bright room.
How to Turn Off Auto-Brightness
You can always override iOS’s auto-brightness by manually adjusting the brightness via the Control Center or in Settings > Display & Brightness.
But if you prefer to manually control your iPhone or iPad’s screen brightness all the time, you can simply turn off the iOS auto-brightness feature. Here’s how.
To disable auto-brightness, grab your iPhone or iPad, do this:
- Open the Settings on your phone or iPad and tap on ‘Accessibility.’
- Next, tap on ‘Display & Text Size.’
- Toggle the switch off next to ‘Auto-Brightness.’
For older versions of iOS, follow these steps instead: Settings > General > Accessibility > Display Accommodations.
Just a heads up if you go this route, however. Disabling auto-brightness of course means that your device’s screen may be too dim to see when you first start using it outside. It also means that you may be blinded by a screen at full brightness if you turn your device on in a dark room.
Both situations are easily remedied by opening the Control Center and manually setting a more appropriate brightness. If you’re OK with these limitations, though, you’ll never have iOS change the brightness level you’ve manually set again.
Apple’s iOS lets us customize quite a few screen brightness features outside of auto-brightness. In this section, we’ll show you some of the other neat features you can change on your iOS device.
In the screenshot above, you’ll see a number of display-related accessibility options, including the option to invert colors or, on the 10.5-inch iPad Pro, limit the display’s frame rate.
Inverting colors is often useful for people who have visual impairments or simply want to reduce eyestrain. Although, to most users, the screen may look a little too strange for everyday usage, others will certainly find this feature very useful.
All you need to do to invert colors on an iOS device is follow the same steps as listed above and toggle on the switch to invert colors. This will immediately change the appearance of the screen.
If the screen looks a little too strange you could enable the ‘Smart Invert’ feature. As opposed to the ‘Classic Invert’ this will keep important things like images in their original format.
Color filters are another useful feature that many who have difficulty seeing color can use to make the interactions with their phone more pleasant.
Just as above, head over to the Accessibility Settings on your iOS device and tap on ‘Display & Text.’ From here, you can tap on ‘Color Filters.’ One of the great things about this feature is that it is fully customizable to meet most users’ needs. Go through the Settings and find the one that is right for you!
Frequently Asked Questions
Can you turn off auto-brightness on a Mac?
If you’re using a Mac or MacBook, the auto-brightness feature may become incredibly annoying (especially if you’re on a plane or in a vehicle where the light is shifting).
To turn this feature off on a Mac or MacBook follow the Apple Menu > System Preferences > Displays path and uncheck the ‘Automatically Adjust Brightness‘ box.
If you don’t see this option it’s likely due to the fact that not all Mac and MacBook products have the ambient light sensor.
If you want to manually control your iPhone’s brightness, here’s how to turn off True Tone, the auto-brightness feature.
Anapa, Russia – July 22, 2019: Woman hand holding iPhone X with IOS 13 and Dark Mode settings. iPhone was created and developed by the Apple inc.
Your iPhone uses sensors to adjust your display’s brightness automatically. This makes it more convenient to use your phone in various situations without manually changing your settings when in extreme sunlight or a dark room.
Using the light sensors to adjust your display, you also preserve your iPhone’s battery, as illuminating the display is one of your smartphone’s most power-intensive tasks.
However, there may be times that you want to take control of your iPhone’s display by turning off True Tone, the auto-brightness setting.
How to Turn Off Auto-Brightness on iPhone
Image Gallery (2 Images)
- Open the Settings app on your iPhone.
- Scroll down and tap to select Display & Brightness.
- Under the Brightness subheading, use the toggle to turn off True Tone.
- Use the slider above the True Tone toggle to adjust your iPhone’s brightness.
If you later want to enable True Tone, navigate to the same area in your iPhone’s settings, and tap the toogle to turn the auto-brightness feature back on.
How to Adjust Brightness in the Control Center
Image Gallery (2 Images)
If you want to keep True Tone enabled but need to override it temporarily, you can quickly adjust the brightness in the Control Center.
- If you are using an iPhone X or later running iOS 12 and above, swipe down from the top-right of your screen to open the Control Center.
- If you have an iPhone 8 or below, swipe up from the bottom of your display to open the Control Center.
- Once the Control Center is open, tap and slide the brightness bar up or down to adjust the display’s brightness.
In the Control Center, you can tap and hold the brightness slider for quick access to common display settings, like adjusting True Tone, turning on Dark Mode, and enabling Night Shift.
Adjusting Your iPhone’s Display Settings
True Tone makes it easier to use your iPhone in a range of lighting conditions by using sensors to adjust your display’s brightness automatically. It’s a valuable feature that can also help improve your iPhone’s battery life. If you prefer to control this setting manually, you now know how to turn off auto-brightness on your iPhone.
However, using digital displays, especially over more extended periods, can be difficult. If you’ve found that your eyes are tired or that you get a headache while using your iPhone, you may want to try a few methods to reduce eye strain and protect your eyes.
If your eyes hurt often, it could be eye strain caused by your iPhone. Learn how to resolve eye strain and how to prevent further problems.
James is an experienced freelance writer, specializing in technology, health, and fitness. He was previously MakeUseOf’s Buyer’s Guide editor and is driven to make technology accessible and safe for everyone. BEng in Mechanical Engineering from the University of Surrey. Also found at PoTS Jots writing about chronic illness.
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