LG TV Screen Flickers then goes to Black

LG TV Screen Flickers then goes to Black

In this article, we’ll be going over the common issue with some LG TVs where the screen flickers and then goes to black. This article discusses the reasons for this problem and a few methods to fix this issue so you can enjoy your TV experience.

LG TV Screen Flickers then goes to Black

LG televisions are well-known for their exceptional quality, which is why they are so popular. In fact, they are the market leader. They do, however, continue to have issues. One of the most prevalent complaints is that their television continues flashing on and off, almost as if it’s recalibrating itself. If you’re experiencing this problem, it may be a very annoying one to cope with.

The screen on many LG TVs becomes black after a few years of use, which is a frequent problem. These TVs, like any other gadget, might develop problems with prolonged usage, but don’t worry since there are measures you can do to troubleshoot and cure the problem.

We’ll walk you through those processes in this post so you can rest easy knowing your TV isn’t broken. Fortunately, there are a plethora of easy and painless solutions.

Reasons for flickering screen:

Frustrated with your LG TV’s flickering screen but don’t know how to fix it? Then this post is just what you need right now. All of the information you need to know about correcting flickering screens on LG televisions is provided here.

1)Energy Saving Mode:

This might be due to a minor problem, such as an improper menu option on your TV. The energy-saving mode is a convenient method to save power, but it can also cause aesthetic difficulties on the screen.

  1. Enter your TV’s menu settings and disable Energy Saving Mode by performing the following:
  2. On your remote, press the SMART button (it will be a picture of a little house).
  3. WHEEL or enter, then Settings, Picture, Energy Saving.
  4. Turn off Energy Saving if it is set to AUTO.

In many circumstances, this will be sufficient to eliminate the flickering. If it doesn’t work, you could want to check to see if the issue isn’t with your TV at all, but with your external devices instead.

2) External Devices Connected:

Perform a visual test on your LG TV to see whether your external gadgets are the source of the problem. This will inform you whether the issue is caused by your external devices:

  1. Activate the SMART button.
  2. WHEEL or enter, then Settings, Support, Picture Test.
  3. To complete the Picture Test, follow the on-screen directions.
  4. If the test fails, follow the on-screen directions to determine what steps to do next.
  5. Check your external devices if the test succeeds.
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If everything seems okay on your image test, that’s a positive indicator for your TV but a poor sign for everything else you’ve connected to it. You may have a problem with your game console, cable box, or laptop rather than the screen.

Bug or Glitch causing the screen to go black:

The most likely cause is a bug or a problem. If you have automatic updates enabled on your TV, your firmware should automatically update to correct these flaws.

However, you may have accidentally turned it off and forgotten about it. In such a situation, your television is exposed to flaws like these.

  1. Check manually to ensure that your firmware is up to date:
  2. Select the Smart option.
  3. Click Settings, then All Settings, General, and finally About This TV.
  4. Check that Allow Automatic Updates is turned on.
  5. Click the Check for Updates button.

If an update is discovered, follow the onscreen instructions to download and install it. If you are still afflicted by this bug, please contact LG support.

Check for Hardware Problems:

Flickering on the screen may originate from within the television. If you can’t figure out what’s generating the flickering, some electrical component inside is most likely failing. You should attempt all of the other troubleshooting alternatives before concluding that this is the issue. 

You won’t be able to solve these issues on your own. It is recommended to have your TV repaired or to consider purchasing a replacement in the future. If this is a modern TV, it may still be covered by a warranty.


If turning your TV off and on again does not resolve your flickering TV screen, some of the actual components may be failing or disconnecting. Before attempting to remedy the flickering in other methods, you should verify all physical components and connections, such as cables and adapters.

Flickering on LCD panels can also be caused by loose connecting ribbons and wiring. This sort of flashing would show regardless of the input you use with the TV.

All of the cables and wiring appear to be in decent condition? Are your connections tense? Still experiencing problems. Okay, let’s begin troubleshooting step by step to figure out what’s wrong and how to repair it.

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Fortunately, flickering, or blinking TVs may be corrected regardless of manufacturer – LG, Sharp, Apple, TCL, Sony – by following the same troubleshooting techniques.

Examine all external devices connected to your LG TV and try to figure out which one is producing the screen issues.

First, switch off your TV and any other external devices. Disconnect all of the TV’s cables and check them for damage. Frayed ends surrounding connectors, kinks or knots along the wire, or a hole anywhere in the insulation are all signs of a damaged cable. If it appears that you have a faulty cable, you should replace it.

Reconnect the cable to the gadget and the TV one at a time if necessary. Check that the wire is not too close to a heat source, an external loudspeaker, or any other equipment. Restart the TV first, then your external device.

If connecting an HDMI connection does not resolve the flickering issue, connect the device to a different HDMI port. There might be one port that glitches and others that don’t. (At this point, if you’re utilizing component cables or another type of AV connection, you should contact LG for support.)

If the flickering persists, disconnect this external device, and replace it. If your TV screen begins to flicker, you may have a problem with the device and may need to replace it.

If the problem persists, contact LG, and see if you can plan a maintenance visit, as it is most likely a complicated wiring issue.


There are several reasons why your television may be flickering. You’ll want to figure out what’s causing the problem so you can repair it. Fortunately, this is not a difficult problem to resolve.

When your LG TV screen stops working, it might be tempting to give up and call in the professionals straight immediately. However, if you want to save time and money, running through all of the tests listed in this tutorial may be able to cure your problem.

Check your TV’s energy-saving mode, image test, external devices, and any cords, sockets, and ports.

Even if your LG TV has no images, there are various ways to reset it. Simply turn off your television and unhook it from the wall. Hold the power button for 30 seconds while unplugging the TV.

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Then, reconnect it to the outlet and turn it on. This should reset it and hopefully fix the black screen you’re seeing. Hopefully, after attempting the suggestions in this post, your TV will be operational, and you will no longer be struggling with a black screen.

If none of these methods work for you, contact LG for assistance.

This Article is Updated.

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Robert Smith

Robert Smith is a technology lover and loves to write about laptops, monitors, printers, tablets, Apple products and anything that's related to computers and games. He is passionate enough that he maintains this blog regarding tech updates on a daily basis.