LG TV Flickering Screen Issue: How to Fix?

Having an LG TV with a flickering screen can be a frustrating experience, especially when you’re trying to enjoy your favorite shows or movies. This issue can arise for various reasons, such as hardware malfunctions, software glitches, or even external factors like power fluctuations. Fortunately, there are several solutions you can try to resolve this problem. In this comprehensive guide, we’ll explore the causes and provide step-by-step instructions on how to fix a flickering screen on your LG TV.

Quick Summary Table

Solution Description
Power Cycle Unplug the TV, wait for a few minutes, and plug it back in.
Check Connections Ensure all cables are securely connected to the TV and external devices.
Update TV Software Check for and install the latest software updates for your LG TV.
Reset TV to Factory Settings Perform a factory reset to eliminate any software-related issues.
Replace HDMI Cable If using an HDMI connection, try a different HDMI cable.
Check External Devices Inspect external devices connected to the TV for compatibility issues.
Contact LG Support If the issue persists, contact LG customer support for further assistance.

Flickering Screen on LG TV: What to Do?

Power Cycle the TV

Power Socket

  • First of all, Unplug your TV from the power outlet.
  • Now, Wait for at least 2-3 minutes for a complete power drain.
  • Plug the TV back in and turn it on.
  • This simple process can often resolve minor software glitches or clear any temporary data that may be causing the flickering issue.

Check Cable Connections

  • Ensure that all cables (HDMI, component, coaxial, etc.) are securely connected to the TV and external devices (cable box, game console, streaming device, etc.).
  • Loose or damaged cables can cause interference and result in a flickering screen.
  • Try disconnecting and reconnecting each cable to ensure a proper connection.

HDMI Output

Replace HDMI Cable

  • If you use an HDMI connection and the flickering only occurs with a specific device, try replacing the HDMI cable.
  • HDMI cables can degrade over time or become damaged, causing signal interference and flickering issues.
  • Use a high-quality, certified HDMI cable for the best performance.

Check External Devices

  • If the flickering only occurs when a specific external device (cable box, game console, etc.) is connected, the issue may lie with that device.
  • Try disconnecting the device and see if the flickering stops.
  • Check the device’s settings, firmware updates, and compatibility with your LG TV.

Adjust Display Settings

Picture Setting of LG TV

Sometimes, incorrect display settings can cause flickering issues on your LG TV. Here’s how you can adjust them:

  • Press the “Settings” button on your LG TV remote.
  • Navigate to the “Picture” settings menu.
  • Adjust the brightness, contrast, and other display settings to see if it resolves the flickering issue.
  • If the flickering persists, try resetting the picture settings to their default values.

Reset Picture Settings

LG TV Reset Picture Settings

  • Access the Picture Settings menu on your LG TV.
  • Go to the Advanced Picture Settings
  • Look for an option to “Reset.”
  • Confirm the reset and the TV will revert to the factory-set picture calibrations.
  • This can eliminate any conflicting or incorrect picture settings that may be causing flickering.

Check for Overheating

Overheating can sometimes cause flickering or other display issues on your LG TV. If your TV is placed in an enclosed space with poor ventilation or is being used for extended periods, it may overheat and cause flickering.

  • Turn off your TV and allow it to cool down completely.
  • Check the vents and air intake areas on your TV for any dust buildup that may be restricting airflow.
  • Use a soft-bristled brush or a vacuum cleaner with a brush attachment to gently clean the vents and air intake areas.
  • Ensure that your TV has plenty of space around it for proper ventilation. Leave at least a few inches of clearance on all sides and above the TV.
  • Consider using a cooling fan or air conditioning to help regulate the temperature in the room where your TV is located.

Update TV Software

software upgrade of lg tv

  • LG regularly releases software updates to improve performance and fix bugs.
  • Navigate to the TV’s settings menu and check for available software updates.
  • If an update is available, follow the on-screen instructions to download and install it.
  • After the update is complete, restart the TV and check if the flickering issue has been resolved.

Reset TV to Factory Settings

Factory Reset of LG TV

  • If the flickering persists, try resetting the TV to its factory settings.
  • Access the TV’s settings menu and then go to the General.
  • Locate the “Reset to Initial Settings” option.
  • Follow the on-screen instructions to complete the reset process.
  • Note that this will erase all your personal settings and preferences, so you must reconfigure the TV after the reset.

Contact LG Support

  • If none of the above solutions work, it’s time to contact LG customer support.
  • Describe the issue in detail, including the TV model, software version, and any steps you’ve already taken to troubleshoot.
  • LG support may be able to provide further guidance or advise you on the next steps, which could include repair or replacement options.


A flickering screen on your LG TV can be a nuisance, but it’s often possible to resolve the issue with the right troubleshooting steps. By following the solutions outlined in this guide, from simple power cycling to more advanced techniques like factory resets and cable replacements, you increase your chances of returning your TV to optimal performance. Remember, if the issue persists after trying these solutions, don’t hesitate to contact LG customer support for further assistance.

About: Pankaj Konwar

Pankaj Konwar is the founder and writer of 5GMP. He writes in-depth buying guides, tips for troubleshooting common TV problems, and reviews of the latest TV models.

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