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What to do with Samsung Galaxy S8 Plus with screen flickering issue?

We’ve actually addressed the screen flickering issue with the Samsung Galaxy S8 Plus in the past but it seems that we still have readers who are still bugged by said problem. There has been an update recently and we started receiving complaints shortly after that which led us to think that this could be just a minor problem brought by the new update. However, we still need to rule out the possibility that it’s a hardware problem and you still need to troubleshoot your phone to know what it’s all about.

So, in this post, I will walk you through in troubleshooting your Samsung Galaxy S8 Plus with a flickering screen. We will try to rule out every possibility to be able to determine what the issue is all about and how to deal with it. Continue reading below as I will give you the safest and most effective troubleshooting procedures we’ve been using to tackle this problem.

But before anything else, if you have another issue with your phone, drop by our troubleshooting page as we have already addressed hundreds of issues reported by the owners. Odds are that there are already existing solutions on our website or at least, there are similar problems we already fixed. So, try to find ones that are similar or related to your problem. If you need further assistance, however, feel free to contact us by filling up our Android issues questionnaire.

How to troubleshoot Galaxy S8 Plus with a flickering screen

When it comes to troubleshooting a problem with a possibility to be both a firmware and hardware issues, the best thing you could do is rule out the former. After doing some basic troubleshooting and the problem still happens, you still have the Samsung techs to fix the problem for you. There are things you can’t do on your own but there are also problems you can fix without asking for help from a tech. That’s the main purpose of this article; to help you fix a problem you can solve by yourself. So, with all that being said, here’s what you should do about it:

First solution: Reboot your phone into Safe Mode

By doing this, you’re temporarily disabling all third-party apps and services on your phone. There is a possibility that the flickering is caused by one or some of your apps especially those
CPU or power intensive game applications. You see, some apps are actually running in the background especially if you’re used to just hit the Home button when switching between apps. The more apps running, the slower your phone becomes which may lead to this issue.

In safe mode, only the default apps and services will be loaded so if the problem is fixed while your phone is in that mode, then that confirms our suspicion. The next thing you should do is find out which app causes the problem and try to reset it or even uninstall it just to get rid of the flickering.

Here’s how you reboot your Galaxy S8 Plus in safe mode:

  1. Turn the device off.
  2. Press and hold the Power key past the model name screen.
  3. When “SAMSUNG” appears on the screen, release the Power key.
  4. Immediately after releasing the Power key, press and hold the Volume down key.
  5. Continue to hold the Volume down key until the device finishes restarting.
  6. Safe mode will display in the bottom left corner of the screen.
  7. Release the Volume down key when you see Safe Mode.

Should you resort to uninstalling the app that’s causing the problem, here’s how you do it on your Galaxy S8 Plus:

  1. From the Home screen, swipe up on an empty spot to open the Apps tray.
  2. Tap Settings > Apps.
  3. Tap the desired application in the default list or tap 3 dots icon > Show system apps to display preinstalled apps.
  4. Tap the desired application.
  5. Tap Uninstall.
  6. Tap Uninstall again to confirm.

On the other hand, if your phone’s screen still flickers while in safe mode, then move on to the next procedure to troubleshoot the firmware.

Second solution: Wipe Cache Partition

This will delete the system cache and replace those files with new ones. The thing is, when these files get corrupted or become obsolete, various issues may occur. So, you have to get these files replaced with new ones so that your phone will work perfectly. Your personal files and data will not be deleted or touched. This is how you do it:

  1. Turn off the device.
  2. Press and hold the Volume Up key and the Bixby key, then press and hold the Power key.
  3. When the green Android logo displays, release all keys (‘Installing system update’ will show for about 30 – 60 seconds before showing the Android system recovery menu options).
  4. Press the Volume down key several times to highlight “wipe cache partition”
  5. Press Power button to select.
  6. Press the Volume down key to highlight “yes” and press the Power key to select.
  7. When the wipe cache partition is complete, “Reboot system now” is highlighted.
  8. Press the Power key to restart the device.

If the flickering screen continues after this procedure, then you need to do the next procedure.

Third solution: Backup files and reset your phone

This is the last resort and if the problem continues to occur after this, you have no other choice but to bring your phone to the shop so that a technician can check it up for you. But before that, backup your files and data and then do the Master Reset to rule out the possibility that this problem is an issue with the firmware.

  1. Back up data on the internal memory. If you have signed into a Google account on the device, you have activated Anti-theft and will need your Google credentials to finish the Master reset.
  2. Turn off the device.
  3. Press and hold the Volume Up key and the Bixby key, then press and hold the Power key.
  4. When the green Android logo displays, release all keys (‘Installing system update’ will show for about 30 – 60 seconds before showing the Android system recovery menu options).
  5. Press the Volume down key several times to highlight “wipe data / factory reset.
  6. Press Power button to select.
  7. Press the Volume down key until ‘Yes — delete all user data’ is highlighted.
  8. Press Power button to select and start the master reset.
  9. When the master reset is complete, “Reboot system now” is highlighted.
  10. Press the Power key to restart the device.

I hope that this troubleshooting guide can help you one way or another. If you have other concerns you want to share with us, feel free to contact us or leave a comment below.

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