What to do if your LG G7 ThinQ’s screen keeps on flickering (easy steps)

Screen flickering issue may occur to any smartphone regardless of the model and build. It could be a minor problem caused by some issues with some of your apps or the firmware but it could also be a sign of a more serious hardware concern. The best thing you could do is rule out the possibility that it’s just a firmware issue by doing some basic troubleshooting procedures. After which and the problem still occurs, then it’s clear enough that it’s an issue with the hardware and if such is the case, you would need a technician to fix or check the device for you.

In this post, I will walk you through in troubleshooting your LG G7 ThinQ with screen flickering issue. Ever since we started providing support to our readers, we’ve encountered a lot of issues like this in the past. So, I will share with you the solutions we’ve used in fixing those issue. If you’re one of the owners of this device and are currently having similar problem, continue reading as this article may be able to help you one way or another.

Now, before anything else, if you have other issues with your phone, make sure you drop by our troubleshooting page for we have already provided solutions to hundreds of problems reported by our readers. Odds are that we may have already provided a solution to the problem you currently have so try to find issues that are similar with yours on that page and feel free to use the solutions we suggested. If they don’t work or if you need further assistance, fill up our Android issues questionnaire and hit submit to contact us.

How to troubleshoot LG G7 ThinQ with screen flickering issue

In this troubleshooting, we will first try to rule out the possibility that this issue is due to a minor glitch and if it continues, we’ll move on to the next procedure until we exhaust all possible solutions.

First solution: Reboot your phone

Before doing anything move complicated, I suggest that you restart your device first especially if it’s the first time that the problem started to manifest. If it’s just because of a minor glitch in the system or some apps, then a reboot is more than enough to fix it. If it doesn’t help, however, I suggest you try doing the Forced Reboot procedure which simulates battery removal to refresh your device’s memory. Press and hold the Volume Down and Power keys together for 8 seconds or until the device reboots. Then, continue using your phone to know if the flickering continues or not and if it still happens, then move on to the next procedure.

Second solution: Run your phone in Safe mode

Doing this won’t fix the problem but will give you an idea if the cause of the flickering is a third-party app because if the issues seems fixed in this mode, then it means there’s an app that caused the screen of your device to malfunction. The next thing you should do in that case is to find out which app causes the problem and then uninstall it to fix the issue. Now, here’s how you run your device 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 prompted to restart in Safe Mode, tap OK.
  4. After your device restarts, it displays Safe mode at the bottom of the screen.
  5. Uninstall apps that are causing a problem.

And this is how you uninstall apps that you think are causing the problem…

  1. From the Home screen, tap Settings.
  2. Tap the ‘General’ tab > Apps & notifications.
  3. Tap the filter to select the following: All, Enabled or Disabled
  4. Tap the desired app.
  5. Tap Uninstall, then tap OK.

On the other hand, if the screen is still flickering while the phone is in this mode, then try the next procedure.

Third solution: Wipe cache partition

The system creates and uses small files to make it run smoothly and these files are what we call cache. While they’re temporary files, they will cause the phone to malfunction if they become corrupt or obsolete. That might be the case here so you need to delete all system caches by wiping the cache partition so that they will be replaced with new ones. Here’s how you do that in your LG G7 ThinQ:

  1. From the Home screen, tap Settings.
  2. Tap the ‘General’ tab.
  3. Tap Storage > Internal storage.
  4. Wait for menu options to finish calculating.
  5. Tap Free up space.
  6. Tap Temporary files & raw files.
  7. Select the following options:
    • Cached data
    • Clip tray temporary files
    • Raw files from camera
  8. Tap Delete > DELETE.

After doing this procedure and the screen flickering still continues, then you have no other choice but to do the next procedure.

Fourth solution: Master Reset

After doing the first three procedures and the problem continues, then you need to reset your device to rule out the possibility that it’s an issue with the firmware. If the problem still continues after the reset, then you have no other choice but to bring it back to the store where you bought it and have it replaced as it’s a sign that your phone has some kind of hardware problems and you don’t want to deal with that problem every single day. So, make a backup of your important files and data and follow these steps to reset your device:

  1. Back up all data on the internal memory before performing a master reset.
  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 the ‘Delete all user data (including LG and carrier apps) and reset all settings’ message appears, use the Volume down button to highlight Yes.
  6. Press the Power button to reset the device.

A master reset restores the original factory settings and may delete your personal data on the internal storage, such as downloads, ringtones, images, apps, contacts, and Visual Voicemail. It doesn’t delete data stored on the SIM card or SD card.

Should the problem continues after this procedure, then let the technician handle the problem for you.

I hope that this troubleshooting guide have helped you one way or another. If you have other issues 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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