What to do if your Android screen keeps dimming? (6 Easy Fixes)

The Adaptive Brightness settings are the primary cause if your phone’s screen keeps dimming. Based on the lighting, this feature automatically switches the brightness of your screen. if you are facing the same issue, you must disable adaptive brightness in Android Settings to fix the problem.

Android screen keeps dimming
What to do if your Android screen keeps dimming

Another reason for constantly decreasing screen brightness is the Screen Timeout Setting. Your Android may appear to be dimming because the Screen timeout is set to a short duration. You can set the screen timeout for a longer duration and prevent this issue from happening.

In this article, we have mentioned a few methods that can fix the screen dimming issue. Follow the step-by-step guide in the same order as mentioned.

1. Disable Adaptive Brightness

The first solution to your problem is to disable the Adaptive brightness feature. When this feature is turned on, your Android device keeps changing the screen brightness depending on the surrounding conditions. 

Follow the steps below to deactivate the adaptive brightness feature.

  1. On your Android phone or tablet, go to the Settings app.
  2.  Select Display in the Settings.
    Go to Display
    Go to Display
  3. Scroll down to the Adaptive brightness option. If it’s ON, toggle the key to deactivate it.
    Turin off Adaptive brightness
    Turin off Adaptive brightness
  4. The screen brightness can be raised by sliding the bar to the right.
    Slide the bar to increase brightness
    Slide the bar to increase the brightness

2. Increase The Screen Timeout

Check the Screen timeout settings on your phone. If it is set to the shortest time duration (15 seconds), you may find your screen dimming within 10 seconds of turning it on and then the screen goes black. If this is the case with you, set the screen timeout to a longer time duration. Here is how you can do this.

  1. On your device, go to the Settings app and open it.
  2. Choose Display from the Settings menu.
  3. Select Screen timeout from the Display page’s menu.
    Select the Screen Timeout option
    Select the Screen Timeout option
  4. After that, you’ll have a choice of settings for how long the screen will remain inactive before turning off (seconds or minutes).
  5. To delay your screen’s time dimmer, simply tap on the time you desire.
    Select a time duration which best suits you
    Select a time duration that best suits you

3. Change Your Secure Lock Settings

If adaptive brightness and screen timeout were not the culprits, try changing the Secure Lock settings in order to personalize the lock screen security. You can choose how long your device will remain unlocked when the screen automatically turns off. Follow these steps to prevent your screen from dimming automatically.

  1. Go to the Settings app.
  2. Look for the Lock screen option and tap it.
    Go to Lock Screen
    Go to Lock Screen
  3. Select Secure lock settings from the list of options.
    tap on the Secure lock settings
    Tap on the Secure lock settings
  4. Enter your lock screen PIN to proceed.
  5. Now, tap on Lock automatically.
    auto lock when screen is turned off
    Tap Auto-lock when the screen turns off
  6. Here, you will see different time options from seconds to minutes. If your time is set to a short duration, change it to a longer duration.
    Select a time duration
    Select a time duration

4. Turn Off the Power Saving Mode

When the Android phone’s battery is running low, a feature known as Power Saving mode activates. It might switch on by itself, or you could leave it on even after your battery is fully charged. This function conserves power by turning off or changing a few phone capabilities, such as reducing the screen’s brightness.

Turn off the Power Saving mode to prevent your screen from dimming automatically. Here is how to turn it off.

  1. Access the Control Centre by swiping the home screen down from the top.
  2. Swipe it down further to see more options.
  3. Here you’ll find the Power Saving icon, tap it to disable it.
    Tap the Power Saving icon to disable it
    Tap the Power Saving icon to disable it

5. Check Motion And Gesture Setting

Motions and Gestures is an incredible feature available in the Advanced features tab on Samsung phones. This feature detects your face, using the front camera. As long as you have your eyes on the screen, it will prevent the screen from dimming or turning black. 

If your screen keeps dimming after a few seconds of screen time, you should enable this feature and your screen will stay bright and awake as long as you are video streaming or using your screen. Follow the below instruction to find the Motion and Gesture settings on your Samsung phone.

  1. Open Settings and scroll down to select Advanced features.
    In Settings, go to Advanced features
    In Settings, go to Advanced features
  2. Here, tap the Motions and gestures option.
    Select Motions and gestures
    Select Motions and gestures
  3. Turn on the toggle for the option Keep screen on while viewing.
    Turn on the toggle key for "Keep screen on while viewing."
    Turn on the toggle key for “Keep screen on while viewing.”

6. Make Sure Your Phone Is Not Overheated 

Another uncommon reason for screen dimming could be the overheating of your phone. When your phone temperature reaches 40 degrees Celsius, the system automatically slows down your mobile functionalities to reduce the workload. This also includes reducing the screen brightness to preserve battery consumption.

By reducing the running programs, the phone temperature also reduces. When it reaches back to normal, the screen brightness also sharpens. That’s why some people say they only face screen dimming while they are out in the daytime.

If your screen is dimming automatically, check whether the device temperature is normal or not. If not, keep your phone in a ventilated area and stop using it for a while. Android who face this issue more than often should visit their phone’s manufacturer to see if there is a major fault within the device.


Muhammad Zubyan

Muhammad Zubyan is a certified Google IT Support Professional with over 7 years of extensive experience. He has worked on more than 1500 computers, gaining valuable insights that enable him to detect and troubleshoot any complicated root cause of Windows-related issues and errors. In addition to managing Appuals as a Senior Editor, he is currently developing his own Game Optimization program that caters to both gamers and casual users alike.