How To Fix Huawei Mate 20 Screen Flickering Issue

The #Huawei #Mate20 is a premium Android smartphone first released late last year which is best known for its excellent mobile photography capabilities. This phone has a 6.53 inch IPS LCD display with a resolution of 1080 x 2244 pixels. It sports a triple rear camera system that’s co-developed by Leica and has a single 24MP front camera. Under the hood is a HiSilicon Kirin 980 processor paired with 6GB of RAM which should allow multiple apps run smoothly. Although this is a solid performing device there are instances when certain issues can occur which we will be addressing today. In this latest installment of our troubleshooting series we will tackle the Huawei Mate 20 screen flickering issue.

If you own a Huawei Mate 20 or any other Android device for that matter then feel free to contact us using this form. We will be more than happy to assist you with any concern that you may have with your device. This is a free service we are offering with no strings attached. We however ask that when you do contact us try to be as detailed as possible so that an accurate assessment can be made and the correct solution can be given.

How To Fix Huawei Mate 20 Screen Flickering Issue

Before performing  any of the recommended troubleshooting steps for this issue it’s best to make sure that your phone is running on the latest software version. If an update is available then I suggest that you download and install it first. Once the update has been installed you should then proceed with the steps listed below.

There are several reasons why a screen of the phone will flicker however one major factor that can contribute to this is a software glitch. You might have installed an app or some corrupt data exists in the device that is now causing the problem. Right now we will be concentrating our troubleshooting efforts on the software side of the phone.

Perform a soft reset

The first thing you will want to do is to refresh the phone software which can be done easily by simply restarting the device. Although this is usually performed on a  device that is unresponsive it is also recommended in this case as refreshing the phone software will usually eliminate any temporary corrupt data that could be causing the problem.

  • Press and hold the Power and Volume down key for up to 45 seconds.
  • Wait as the device restarts.

Check if the issue still occurs.

Start the phone in Safe Mode

There are cases when an app you downloaded from the Google Play Store will cause the Huawei Mate 20 screen flickering issue on the phone when they are installed. It can also happen if you sideload an app to the device. This could be due to bugs in the app or incompatibility issue with your phone. To check if an app you downloaded is causing the problem you will have to start the phone in Safe Mode as only the pre-installed apps are allowed to run in this mode.

  • Power off the phone by holding down the power button for a few seconds.
  • Press and hold the power button and release it when you see the Huawei logo on screen.
  • After releasing the Power key, immediately press and hold the Volume down key.
  • Keep holding the Volume key till the phone completely boots up.
  • Once the phone boots up,  “Safe mode” should be appeared on the bottom of the screen

If the issue does not occur in this mode then it is most likely caused by an app you downloaded and installed. Find out what app this is and uninstall it.

To find the specific app you will need to do a trial and error method. Start by uninstalling the last app you downloaded before the issue occurred. If the problem still occurs then uninstall the next app on the list. Once the screen stops to flicker after uninstalling a specific app then that app is the most likely culprit.

Wipe the cache partition of the phone

Sometimes the cached data stored in the dedicated partition of the phone can become corrupted. When this happens this this will usually cause certain issues to occur on the phone. To eliminate the possibility that this is what’s causing the problem you will have to wipe the cache partition of the phone from the recovery mode.

  • Turn off your phone.
  • Press and hold Volume UP button along with Power button on your  device simultaneously for a few seconds
  • The phone will enter the stock recovery mode
  • Use volume buttons to highlight ‘wipe cache partition’ and use power key to select it
  • Reboot the system once the process is completed

Check if the issue still occurs.

Perform a factory reset

In case the above steps fails to fix the Huawei Mate 20 screen flickering issue then chances are this is caused by a system glitch. The best way to deal with this right now is to perform a factory reset. Make sure to backup your phone data before doing the reset.

  • Turn off your phone.
  • Press and hold Volume UP button along with Power button on your  device simultaneously for a few seconds
  • The phone will enter the stock recovery mode
  • Use volume buttons to highlight  select wipe cache/factory reset and use power key to select it
  • Reboot the system once the process is completed

Setup the phone, but do not install any apps yet, then check if the issue still occurs. If it does then this might already be caused by a faulty hardware component, possibly the display assembly. The best thing to do right now is to bring the phone to a service center and have it checked.

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