The most frustrating part is that sometimes you cant adjust the brightness in thequick panel.
You get the cant change brightness because another app is controlling it warning pop-up.
Granted, such an unexpected app behavior feels really invasive.
They usually do that via a special API you accept when installing the app.
Similarly, content or reading apps sometimes override the system brightness to show HDR content.
Sadly, theres nothing it’s possible for you to do to prevent such apps from controlling brightness.
Note: Before you begin the troubleshooting process, reset your Android phone.
However, Adaptive Brightness may not be compatible with certain apps.
That may cause various brightness-related glitches.
Therefore, you should try disabling Adaptive Brightness on your Android phone.
For that, go to prefs, followed by Display, and turn off the toggle for Adaptive Brightness.
Tip:Learn how tofix Adaptive brightness not working on Android.
Go to controls, followed by Advanced Features, and tap on Video Brightness.
Select Normal and see if things improve.
For example, Netflix has its own brightness tool.
Tip: Learn how tofix Netflix app overring brightness on Android
4.
For that, launch the Recent Apps screen and swipe up the apps one by one to close them.
Assistance Menu is an accessibility feature providing access to various custom functions inside a floating button on your screen.
Step 2: turn on the toggle next to Accessibility menu shortcut.
Step 3:You will notice a floating icon on your screen.
Tip:On Samsung Galaxy phones, go to configs, followed by Accessibility.
Tap on Interaction and dexterity and fire up the toggle next to the Assistant Menu.
Tap on the Assistant Menu text and press Select Assistant menu items.
ensure Brightness is added.
Smart Stay may sometimes mistakenly detect your eyes moving and change the brightness level.
To disable this feature, go to parameters, followed by Advanced features.
Tap on Motions and gestures and turn off the toggle next to Keep screen on while viewing.
On older Samsung Galaxy phones, go to controls > Display > Smart Stay and disable this feature.
verify if the brightness level still changes on its own.
You must check and ensure its off and your phone is sufficiently charged.
To disable Power Saving mode, go to configs, followed by Battery and then Battery Saver.
Turn it off and also disable any schedule set for battery save.
Turn off Power saving.
This might also be the reason why you think an app is changing brightness.
To turn it off, go to configs, followed by Display, and turn off Night Light.
And on Samsung Galaxy phones, go to options > Display and disable Eye Comfort Shield.
Clear App Cache
The junk files and system cache may trigger many types of glitches, including brightness-related problems.
If an app is changing the brightness of your phone unexpectedly, tryclearing its cache.
Go to controls, followed by Apps, and tap on the problematic app.
Tap on Storage and press the Clear Cache button to remove junk files and flush the system cache.
Then, reset your phone and peek if the app is still controlling the brightness parameters.
The video plays bright and normal when downloaded.
Update App
You should also tryupdating the app.
Go to the Play Store and search for the app.
Tap on the Update button on the app.
Phone Software
Lastly, you shouldupdate the software of your phone.
Maybe theres a bug in your phones software itself.
Updating your phones software will eliminate that and prevent apps from changing brightness.
Go to configs, followed by System, and tap on Software Update to check for an available update.
Frequently Asked Questions
To lock brightness on an Android phone, turn off Adaptive brightness first.
Then, set the brightness manually to the point where you like it.
That will lock the brightness unless you use the slider to change it.
In the app parameters, look for the theme or dark mode option.
Then, change it to Light from System or Dark mode option.
Before you go, know how todisable dark mode in Google apps.
Also, know how tofix dark mode not working on Chrome.
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