'I am pretty happy with my new iPhone 8, but the auto-brightness is NOT working properly! Kinda irritating as I have to manually set things every time I get into a dark room and then out, and into the sunlight etc. Can anyone help me to fix this issue and I need my iPhone auto-brightness works again! Thanks!'

Actually, many users have encountered various iPhone brightness problems after updating to iOS 11, including iPhone screen is too dark while the brightness level is all the way up, iPhone auto-brightness not working, and iPhone brightness won't go up. In this article, we will show you what to do if your iPhone brightness not working in iOS 11 with the situation above.

5 top tips to fix iPhone brightness not working in iOS 11

New iOS update may cause various system-related problems, such as iPhone keeps restarting, or iPhone alarm/notification/flashlight not working properly. Read on and use the effective solutions below to fix iPhone brightness not working after iOS 11.

1. Disable Reduce White Point

There is a setting called Reduce White Point on your iPhone that will reduce the intensity of bright colors on your device and then you will have a dim screen. To turn off Reduce White Point, you can

Go to 'Settings' > 'General' > 'Accessibility' > 'Display Accommodations' > turn off 'Reduce White Point'.

Apr 18, 2018 Open the computer power plan settings to change the screen brightness. Search Windows for 'edit power plan', then click Edit power plan in the list of results. Use the Adjust plan brightness sliders to increase or decrease the screen brightness, then click Save changes. Figure: Adjust the power plan brightness. Feb 28, 2021 SOLVED: Brightness Settings Not Working in Windows 10 Microsoft is urging its user to upgrade, and as a result, more and more Windows users are upgrading to Windows 10. However, upgrading or installing a new operating system may cause many unexpected issues. Unable to change the brightness after an update to Windows 10 is a common issue. Windows Brightness Control slider is one of the very important utilities for Windows users. If it is not working properly, that needs to be fixed immediately. The brightness control lets you prevent your eyes from unnecessary strain and saves battery life while working on a PC for long hours. You can always change the brightness Continue reading 'Fix: Windows 10 Brightness Control Not. Video is about how to fix windows 10 brightness control not working issue-how to fix screen brightness not working in windows 10-how to fix brightness proble.

2. Restart your iPhone

To find the brightness slider in earlier versions of Windows 10, select Settings System Display, and then move the Change brightness slider to adjust the brightness. If you don't have a desktop PC and the slider doesn't appear or work, try updating the display driver.

Brightness Setting Not Working In Windows

Long-time no restarting will cause some unexpected issues on your iPhone, such as iPhone live wallpaper not working, iPhone screen recording not working or iPhone auto-brightness not working here.

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.

3. Turn off Zoom

If the Zoom feature is on, you may get the dim screen on your iPhone. Therefore, turning off Zoon is one way deserving to try to fix this problem.

Go to 'Settings' > 'General' > 'Accessibility' > 'Zoom' > turn it off.

4. Reset All Settings on iPhone

If your iPhone brightness not working in iOS 11 caused by some errors in iOS settings, you can try to fix this issue by resetting all settings on iPhone. And this operation won't cause any data loss, do it without worry.

Go to 'Settings' > 'General' > 'Reset' > 'Reset All Settings'. Then all the settings on your iPhone will be wiped and you can set up your iPhone again to check the matter.

5. Restore your iPhone

If none of the above solutions can fix the iPhone brightness issue and your iPhone screen is still too dark or the auto-brightness also won't work, then you have to consider restoring your iPhone. When we talk about restore iPhone, usually, we can restore iPhone from iCloud or restore iPhone with iTunes backup. For better keep the data safe, we highly recommend you to restore iPhone with iTunes backup.

Connect your iPhone to your computer via a compatible USB cable.
Run iTunes and click on the iPhone device icon in the upper left corner of iTunes.
Click 'Summary' under the device icon from the menu on the left side.
Tick the box for automatically backing up to 'This computer'.
Click 'Restore Backup'. When the option appears, choose the latest iTunes backup and click 'Restore'. If you have encrypted the iTunes backup, you need to enter the password to unlock the iPhone backup.

How to keep your iPhone data safe when accidents happen

No matter you are using iPhone or iPad, the old iPhone or the latest iPhone 8/X, you may meet some unexpected issues from time to time, such as iPhone stuck on apple logo, iPhone AirDrop not working, iPhone such on recovery mode, iPhone physical broken or even virus attack. Then, how to protect your device data safe at this time? The answer will definitely be a regular iPhone data backup with a reliable and free iPhone manager. And EaseUS MobiMover Free is such a tool enables you to export almost all the iPhone files to the Windows computer with only one-click. And the supportable files are contacts, messages, notes, calendars, voice mails, books, Safari bookmarks & history, photos, videos, and audios.

Step 1. Connect your iPhone to your PC running Windows 7/8/10 with a USB cable. Tap 'Trust' on your iPhone screen if asked. Run EaseUS MobiMover and navigate to 'Backup Manager' > 'Back up'.

Step 2. All the supported categories are selected by default. Click 'One-Click' backup to start backing up your iPhone to PC.

Step 3. Wait patiently until the backup process completes.

Summary :

Although Windows 10 is a stable operating system in performance, some issues may also happen in some cases and you need to troubleshoot it. Today in MiniTool’s post, we will show you how to fix the issue of laptop brightness not changing.

Why Is My Brightness Setting Not Working

Laptop Brightness Not Changing

Adjusting the brightness of your device is an easy task you may perform every day. You can increase the brightness by day to make it easy to see the contents on the screen. Likewise, you can lower the brightness to adapt the light at night to let eyes rest.

However, some users reported that they couldn’t adjust the screen brightness. The brightness always keeps maximum, regardless of the power plan.

This issue may not impact your desktop since you can change the brightness via adjusting the monitor. But for some laptops, it is frustrating if Windows 10 can’t change brightness. Since the laptop is constantly running with the maximum brightness, the battery life may be affected.

Fortunately, you can easily fix this issue and we will introduce some methods to you in the following part. Let’s go to see how to troubleshoot it.

Tip: Is screen brightness not working? This related article - Top 5 Solutions to Windows 10 Brightness Not Working is helpful.

Fix: Can’t Adjust Brightness Windows 10

Adjust the Brightness from Power Options

To fix the issue of laptop brightness not changing, you can tweak some power options settings. It is also useful if you encounter the problem in Windows 7 and 8.

See what you should do:

Step 1: Open Control Panel in Windows 10 and view all the items by Category.

Step 2: Navigate to Hardware and Sound > Power Options.

Step 3: Click the Change plan link next to your selected plan.

Step 4: Click Change advanced power settings.

Step 5: Scroll down to find Display and expand the drop-down menu.

Step 6: Expand Display brightness and adjust the value, do the same for the Dimmed display brightness menu, and make sure