Skip to Content

Samsung TV Blue Patches (Causes and How to Fix)

As an owner of a Samsung TV, I was recently frustrated by the appearance of blue patches on my screen. After doing some research and testing, I’m here to share how I solved the problem, as well as other potential solutions I discovered. In this blog post, I will explain the potential causes of blue patches on Samsung TVs, and how to fix them.

The most common causes of blue patches on your Samsung TV include issues with the picture and display settings, faulty backlights, and hardware issues. As long as it isn’t due to permanent damage to your Samsung TV, it should be easily fixable.

IssuePossible CausesSolutions
Blue Patches on Samsung TVSoftware glitchPerform a soft reset by unplugging and replugging the power cable
Incorrect picture settingsReset picture settings to default factory settings
Damaged or improperly connected cables and wiresCheck and replace any damaged cables or wires, and ensure proper connection
Firmware or system settings issuesPerform a factory reset on your Samsung TV
Faulty or damaged backlight LED stripsHave a technician inspect and replace the LED strips, if necessary
Manufacturing defects or other hardware issuesContact Samsung support for assistance, especially if your TV is still under warranty

How to Fix the Blue Patches

Before throwing in the towel and calling a technician or having your Samsung TV replaced, you can try following these steps:

Soft Reset

Yes, we know it’s a stereotypical method when it comes to troubleshooting most tech problems, but a lot of times, it gets the job done. Performing a soft reset clears a device’s internal memory of running programs, which often clears up any technical glitches.

To do this:

  1. Disconnect your Samsung TV from its power source by unplugging the power cable from its outlet.
  2. Wait for around 1-2 minutes before plugging the power cable back into its outlet.
  3. Turn your Samsung TV on to see if the blue patches are gone.

If the blue patches disappear, then there might’ve been a software glitch that caused blue patches to display on your Samsung TV.

Picture Reset

Your Samsung TV is capable of resetting its picture settings to the default factory settings. This will refresh your Samsung TV and possibly fix blue patches and other minor problems.

To do this:

  1. Head to Settings > Picture.
  2. Select Expert Settings > Reset Picture.
  3. Select Yes to get started.

This’ll remove any existing picture settings applied to your Samsung TV. If you already have a preferred picture setting on your Samsung TV, it’s best to take note of it before resetting.

Check Your Cables and Wires

It’s worth checking the cables and wires you’re using for your Samsung TV, in case any of them might be damaged or not plugged in properly. Try unplugging your HDMI (if applicable) or if you’re using a specific cable box, do the same for its cables.

Examine your wires for any signs of damage or dirt. If you see any damage and have other wires available, try using them instead. Make sure to firmly plug them back in on your Samsung TV.

As basic as it may sound, faulty cables and wires can sometimes be the culprit for image issues on your Samsung TV.

Factory Reset

If all else fails, another common solution would be to factory reset your Samsung TV. While it’s a hassle to have all your data erased, factory resetting remedies most issues and glitches on your Samsung TV.

To perform a factory reset:

  1. Head to Settings > General.
  2. Select Reset.
  3. Enter your PIN > then select Reset.

Note: If you didn’t change your PIN initially, the default should be ‘0000’.

If the steps don’t apply to your specific Samsung TV model, it’s best to refer to your user manual for the exact instructions applicable to your Samsung TV model.

Worst Case Scenarios

If all else fails and the blue patches are because of a manufacturing defect or hardware issues, then it’s best to consider seeking help from Samsung or a technician.

The blue patches on your Samsung TV might be caused by faulty or damaged backlight LED strips. In this case, we recommend getting it checked by a technician and having them replace the LED strips.

It’s worth noting that damage to LED strips is often caused by lightning strikes or unstable electricity.

To avoid this, ensure a secure and hazard-free setup for your Samsung TV by keeping it away from open windows. See to it that the power outlet you’re using is also functioning properly.

If all signs are leading to any other manufacturing defects or hardware issues, it might be time to get in touch with Samsung. Hopefully, your Samsung TV is still covered by its warranty to avoid spending extra for a replacement.


As much as seeing blue patches on your Samsung TV can lead to some major concerns, it can be easily remedied for the most part. Sometimes the simplest and oldest tricks in the book can already get the job done.

A few resets and some double-checking on your devices and their wires have stood the test of time in fixing common issues.

Nonetheless, it’s important to take good care of your electronic devices, not just for their longevity, but also for your general safety. Nothing wrong with a little bit of TLC!

Read more: Samsung TV dialogue too quiet