Skip to Content

(7 Fixes) LG TV Screen Flickering [Updated 2022 Guide]

LG TV Screen Flickering

A flickering LG TV screen isn’t the end of the world. 

How do I know? 

Because I’ve been in the same situation.

And fixing your LG TV takes less time than grilling meat. 

Ready to get started? 

Read on to discover:

  • 7 quick fixes when your LG TV screen flickers. 
  • Why your LG TV screen suddenly flickers on and off.
  • How to fix your screen flickering issue without complicated tools or instructions.
  • And so much more…

Why is my LG TV screen flickering?

Your LG TV screen flickers because of a loose or damaged cable. Sometimes, it’s a glitch or a picture setting that needs correcting. Making your backlight level too high or turning on Energy Saving mode can lead to visual issues in your LG TV. Lastly, damaged internal hardware could be the problem.


LG TV screen flickering: 7 fixes


#1: Reset your LG TV 

One good reason why your screen’s flickering?

There’s a glitch in the system.

Basically, it could be a TV design flaw or an app that malfunctioned. 

In effect, it’s as if your TV’s choking.

And then…

You end up with an error on your screen.

Now, one of those errors is the flickering issue you’re currently seeing.

But thankfully, it’s an easy fix.

How to fix it:

The quickest and easiest solution is to reset your LG TV:

  1. Unplug your TV. 
  2. Wait for at least 15 minutes. 
  3. Plug your LG TV back into the power source. 

Why wait for 15 minutes? 

Most resets usually tell you to wait between 30 seconds to 1 minute. 

However, this doesn’t always solve the issue. 

To give your LG TV ample time to recover and recalibrate, 15 minutes should be sufficient. 

Read also: (15 Fixes) My TV Turns On Then Off Immediately

#2: Do a picture test

When resetting your TV fails, a picture test’s the next best option. 

Most of the time, this solves any internal issues your TV’s experiencing.

Here’s how it works:

If your LG TV passes the picture test, it means:

Your screen isn’t the issue, but the external devices plugged into it are (more on this later).

“What if my TV doesn’t pass the picture test?”

Then, follow the on-screen instructions to fix your screen flickering problem.

How to fix it:

Note: I’ve included 2 ways to access “Picture Test” on your LG TV since it may vary per model. 

  1. Press the settings button (gear icon) on your remote.
  2. A menu should pop up (either on the left or right of your screen).
  3. Scroll all the way down and tap “All Settings.”
  4. Press “Picture” to bring up the “Picture” menu.
  5. Tap “Picture Test.”
  6. Follow the on-screen instructions to complete the test.  

Now, if you don’t see “Picture Test” in the “Picture” menu of your LG TV, try this: 

  1. Press the settings button (gear icon) found on your remote.
  2. Note: If you don’t see it on your remote, try the Smart button (home icon).
  3. Select “Settings.”
  4. Scroll down until you hit the “Support” option (question mark highlighted in blue).
  5.  Below “Software Update,” select “Picture Test.” 

Did your LG TV pass the test? 

If it did, you’ll have to…

#3: Troubleshoot your TV’s cables

Because your TV passed the picture test…

The flickering issue’s most likely due to your cables, and not your TV’s screen. 

But wait…

“How do I know which cable’s the problem?” 

How to fix it:

First, unplug your TV. 

Then, detach all your cables.

From here, follow these steps:

  1. Turn on your TV. 
  2. Attach one cable at a time. 
  3. Ensure a tight fit. 
  4. Check which of the cables causes a flickering issue. 

Now, let’s say your HDMI cable’s the problem. 

What’s the next best step? 

Buy a new cable

And no – don’t grab the cheapest one you can find. 

Cheap cables only lead to spending more long-term. 

#4: Turn off Energy Saving mode

You’re probably wondering…

“How does an Energy-Saving feature cause my LG TV to flicker?”

The basic principle is it allows you to save on utility costs, right? 

But that also means your TV uses less power to function. 

Is that bad? 

Not exactly. 

However, if your TV isn’t operating at the capacity it should be running, then…

You might experience a few issues down the line. 

And one of those includes your screen flickering. 

How to fix it:

Luckily, the solution’s simple: 

Turn off your LG TV’s Energy Saving mode.

Here’s how to do it: 

  1. Press the settings button (gear icon) on your remote.
  2. A menu should pop up on the left or right of your screen. 
  3. Scroll all the way down and select “All Settings.”
  4. In the “Settings” menu, tap “Picture.”
  5. Select “Energy Saving” (located above “Picture Test”) 
  6. Turn it off.
  7. Check if your TV screen is flickering.

In some cases, “Energy Saving” is located above “Additional Settings” or “Eye Comfort Mode.”

If you want an instructional video guide, here’s one you can check out:

After turning off your LG TV’s Energy Saving feature, and your screen stops flickering…

It means your TV needed more power to operate normally. 

But if that didn’t solve your issue, do this next:

#5: Try another cable network or streaming service

In some cases…

Your screen flickering problem lies with the cable service or streaming platform.

Take Apple TV, for example. 

It might be the app or the platform itself that’s glitching. 

So, what next?

How to fix it:

First, try accessing another streaming platform like Netflix

If your screen flickering issue goes away, you’ll know it’s not your TV’s fault. 

From here, close the app that’s malfunctioning or glitching. 

Then, reopen the streaming platform again. 

This should fix the issue easily.

LG TV screen still flickering?

Don’t worry, this next fix should work. 

Editor’s pick: 7 Steps To Watch Apple TV On LG TV

#6: Adjust backlight settings

Did you know setting your backlight to its max level decreases your TV’s life span?

And it’s not just a flickering issue that could arise from it.  

As you’ll find out in the next section, high backlight settings can damage your TV’s hardware.

But if your TV unit’s fairly brand new, this might not be the case.

First, you should at least try adjusting your backlight and see if it solves the issue.

Check out: 11 Ways To Fix Your TV Brightness Problem

How to fix it:

  1. Tap the settings button (gear icon) on your LG TV remote. 
  2. Scroll all the way down and press “All Settings.”
  3. In the “Picture” menu, tap “Picture Mode Settings.”
  4. Under “Customize,” you should see “Backlight.” 
  5. If it’s set to 100 by default, adjust the setting. 
  6. Decrease your backlight’s level until your screen stops flickering.

Still didn’t work? 

As a last resort, you’ll have to… 

#7: Replace your LG TV’s hardware component

If none of the solutions above worked, it might be that your LG TV has a damaged…

  • Diode.
  • TV cap.
  • Resistor.
  • LED strip.
  • Power supply board.
  • Printed circuit board (PCB).

Put simply, these are all internal TV components with their own lifespan.

If one of them has a design flaw or poor workmanship, then…

It leads to TV issues like your screen flickering. 

Other times, this may result in other problems, such as your LG TV not turning on.

However, it also depends on other factors. 

As mentioned earlier, maxed-out backlight settings can hurt your TV’s lifespan. 

To be specific, it degrades the LED strips faster. 

What exactly do these “strips” do? 

Basically, they provide LED backlight to your TV. 

So if your LED strips break, you get problems like your screen flickering, for example. 

That said, you might be interested to know…

“Can I replace the hardware components myself?”

If you have technical experience working with TVs…

You could, but then again, it’s also best if you don’t. 

Why? 

Because dismantling your TV might also lead to tampering with other delicate components.

As a result…

You’d damage your TV’s hardware even more, leading to higher costs.

How to fix it:

First things first. 

Contact LG about your problem.

Contact LG

Have a professional diagnose your TV.

From here, you should be able to get an accurate assessment of your screen’s flickering issue.

Sometimes, you can replace the hardware component that’s damaged. 

But if several components have kicked the bucket, you’re better off buying a new TV.

Why’s that? 

Put simply, the repair costs for several hardware parts are too expensive. 

Overall, the total expense isn’t worth paying if you have the same issue a year or 2 later.