What to do if the screen of your LG G6 Plus starts flickering (easy steps)

The screen flickering issue that may occur to your smartphone is a tricky one because it could be a minor problem that could have caused by a glitch in either the firmware or hardware, or it could also be just a sign of a more serious hardware problem. We have some readers that own the LG G6 Plus who’ve been complaining about this issue. We won’t know for sure why it occurs and all we could do is assume that it could just a minor problem. But if you’re the owner, you should be the first one to know if the problem is serious or not.

Say for instance you dropped your device on a hard surface and then this problem started to manifest. If you’re the owner you should immediately think that the drop caused the problem and it could be an issue with the hardware. Another example, if you tried to modify the firmware by rooting it and installing a custom ROM and then the issue started, it’s but normal to think that maybe the firmware is corrupt or has some issues, right. However, if it started without apparent reason or cause, then you may think that it could be just a minor problem and that’s what we immediately assume here. If that’s the case, then continue reading as we may be able to help you one way or another.

Before we proceed, if you’re looking for a solution to a problem with your phone, try to browse through our troubleshooting pages to see if we support your device. If your phone is in the list of our supported devices, then go to the troubleshooting page and look for similar problems. Feel free to use our solutions and workarounds. Don’t worry it’s free. But if you still need our help, then fill up our Android issues questionnaire and hit submit to contact us.

Troubleshooting LG G6 Plus with screen flickering issue

The best thing we can do about this problem is to rule out the possibility that it’s just a firmware problem because if it points to the direction of a hardware issue, you have no other choice but to bring it to a shop or back to the store where you bought it so that a technician can check it up for you. But then again, if this problem started without apparent reason, you don’t need to worry so much about it because odds are that it’s just a minor issue caused by apps or the firmware. With all that being said, here’s what I suggest you do about it:

  1. Reboot your phone first – before doing anything complicated, you should try rebooting your phone because there’s always a chance that it is just a minor glitch in the system. There are times when applications crash in the background, some core functions may be affected and the screen is always the most visible of all components. But if this is indeed the case, a reboot can fix it. If not, try doing the forced reboot procedure: press and hold the volume down button and the power key at the same time for 10 seconds or more. This will reboot the phone normally but its memory will be refreshed. If the problem, however, keeps happening after this, then move on to the next solution.
  2. Observe your phone in Safe Mode – running your device in safe mode means you’re temporarily disabling all third-party apps and services. If the screen flickering issue is fixed while in this mode, then it means that there’s an app or two that causes the problem. Find that app and then uninstall it. However, if the flickering continues even in safe mode, then it could be an issue with the firmware. Proceed to the next step.
  3. Wipe cache partition – wiping the cache partition will delete all temporary files created by the firmware that help make your phone and apps run smoothly. These files are prone to corruption and if it happens and the firmware continues to use them, performance issues like this may occur. There are times that some hardware components may fail to work properly because of that. For this, you need to run your phone in recovery mode and wipe the cache partition from there. Refer to the instructions below so you would know how to do this.
  4. Backup your files and reset your phone – after wiping the cache partition and screen flickering issue continues, the next thing you should do is reset your phone. This is the last procedure you need to do to rule out the possibility that it’s a firmware issue. However, make sure you make a backup of your important files and data as they will be deleted during the process.

After the reset, try to observe your phone closely to know if the screen would still flicker and if it still does, then you have to bring it to the shop or back to the store so that a technician can check it up for you.

Troubleshooting procedures used in the guide

Here are the step-by-step instructions on how to do the procedures I mentioned above…

How to run LG G6 in Safe Mode

  1. With the screen on, press and hold the Power key.
  2. In the options menu that displays, press and hold Power off.
  3. When ‘Restart in Safe mode’ displays, tap OK to restart in Safe mode.
  4. Upon restart, device displays ‘Safe mode’ at bottom of screen.

How to uninstall apps from your phone

  1. From any home screen, tap Apps > Settings.
  2. If using Tab view, select the General tab.
  3. Tap Apps.
  4. Tap the drop-down to view apps by:
    • All apps
    • Enabled
    • Disabled
  5. Tap the desired app.
  6. Tap Uninstall > OK.

How to wipe cache partition

  1. From the home screen, tap Apps > Settings.
  2. If using Tab view, select the General tab.
  3. Tap Storage > Internal storage.
  4. Wait for the menu options to finish calculating.
  5. Tap Cached data > CLEAR.
  6. Wait for the cached data to clear; depending on size, it will take several seconds to complete.
  7. When complete, the storage screen refreshes and Cached data shows as 0 B. This means your cached data has been successfully cleared.

How to do the Master reset

  1. Back up data on the internal memory.
  2. Turn off the device.
  3. Press and hold the Power and Volume down buttons.
  4. When the LG logo appears, quickly release and then re-hold the Power button while continuing to hold the Volume down button.
  5. When Factory data reset appears, use the Volume down button to highlight Yes.
  6. Press the Power button to confirm.
  7. When Erase all user data and restore default settings appears, use the Volume down button to highlight Yes.
  8. Press the Power button to confirm.
  9. Wait for the device to reset.

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

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Harold Hisona

Harold has been in the tech industry since 2008 when he started out as a tech support for companies like Time Warner, Comcast and Tracfone. He’s been troubleshooting phones when the smartphone industry started booming. During his tenure as a tech support, he’s already been writing for various tech blogs and doing some freelance SEO. In 2012, he joined a small team of bloggers to write for The Droid Guy, and he has been with the company ever since. Today, he doesn’t only write tutorials and troubleshooting pieces but also shoots and edits videos for The Droid Guy channel while trading stocks on the side. Contact me at Email

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