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How to Stop a Samsung TV Screen Flickering (STEPS)

Why does my Samsung TV screen keep flickering?

Sometimes, the Samsung TV screen starts to flicker due to issues with the energy-saving feature, cable connection, and internet connection.


Common Causes

  • Energy-Saving Feature
  • A Bad Cable Connection
  • Signal Issues
  • Malfunctioned eco-sensor
  • Outdated OS
  • Room’s Brightness Level
  • Picture Settings
  • Electrical Interference
  • Screen Backlight Issues
  • Errors & Glitches
  • Internal Hardware Issues


Energy-Saving Feature

Most Samsung smart TVs come with an energy-saving feature that adjusts screen brightness automatically to save power. Sometimes, this feature can lead to random flickering caused by a low brightness level.


A Bad Cable Connection

You can never rule out the possibility of a bad cable connection. If your TV is not connected firmly to a power socket, it won’t get adequate electricity, which can lead to flickering. Moreover, this issue can also be a result of a bad HDMI connection.


Signal Issues

If your Samsung TV is facing signal issues, you will probably encounter the flickering TV screen issue. For broadcasting, your television requires stable signals. If they are low or intermittent, you will face several display-related issues.


Malfunctioned eco-sensor

Latest Samsung TVs come with eco-sensors that allow your device to adapt its picture according to the light in the room. It also adjusts brightness and saves energy. If the eco-sensor malfunctions, you might encounter the black screen issue.


Outdated OS

Smart TVs, like all other smart electronic devices, come with an operating system. If your television’s operating system is outdated, it might cause several issues, including a flickering screen problem.


Room’s Brightness Level

Just like all other smart TVs, Samsung devices also come with an auto-brightness setting. This feature can alter the screen’s brightness according to the room’s brightness level. If your room has extreme lighting conditions, it can lead to flickering and black screen issues.


Picture Settings

Have you recently changed the picture settings on your TV? If so, this might be causing unwanted flickering and display-related issues.


Electrical Interference

If you have been using multiple electronic devices within close proximity, it can lead to electrical interference. If your TV’s signals interfere with other electrical devices, it can lead to a black screen or flickering. Also, a magnet near your TV screen can also be the culprit!


Screen Minimum Backlight Issues

If your TV comes with a minimum backlight feature, it might be causing the flickering and occasional black screen. This feature allows your TV to adjust the intensity of the lighting source, and once in a while, it can cause some display issues.


Errors & Glitches

The more you use your smart TV, the more it will get prone to errors and glitches. Mostly, Samsung fixes these errors & glitches in the latest firmware. However, if you have too many glitches, you might face flickering and black screen issues.


Internal Hardware Issues

No matter how durable a smart TV is, it is still an electronic device. This makes your television prone to overheating and other hardware issues. If critical hardware is damaged in your TV, it will cause a flickering and black screen.


Samsung TV screen flickering


How do I fix a Samsung TV screen that keeps flickering?

You can get your Samsung TV to stop flickering by resetting it, updating its OS, or adjusting the picture settings.


Restart the Samsung TV[Method 1]

  1. Unplug your Samsung TV
  2. Push the power button for 30 seconds
  3. Let your TV rest for around 60 seconds
  4. Plug it back in


Update the OS [Method 2]

  1. Open “Settings”
  2. Find the “Support” option
  3. Go to “Software Update”
  4. Choose the “Update Software” Option
  5. Restart your TV


Change Video Source [Method 3]

The most common reason that can cause the Samsung TV to flicker has malfunctioned external devices and cable connections. So, make sure to check all connections linked with your Samsung TV. You can check the HDMI connection and power cable to solve this problem.


Adjust Picture Settings [Method 4]

  1. Press the “Home” button on your remote
  2. Go to “Settings”
  3. Choose “Picture”
  4. Find the “Expert Settings” option
  5. Select the “Reset Picture” option
  6. Click “Yes” to confirm


Adjust Minimum Backlight [Method 5]

  1. Open “Settings”
  2. Select the “General”
  3. Find “Eco Solution” Option
  4. Choose “Minimum Backlight”
  5. Afterwards, Adjust the scale according to your preferences.


Check Room’s Brightness Level [Method 6]

Mostly, Samsung TVs come with an auto-brightness option. This means your device will automatically alter its brightness level depending upon your room’s brightness level, which can cause flickering.

To avoid flickering or black screen issues, you need to check your room’s brightness level. You can either darken or brighten your room to fix this issue.


Turn off the Energy-Saving Mode [Method 7]

  1. Press the “Home” button to open “Settings.”
  2. Select “General”
  3. Find the “Eco Solution” option
  4. Choose the “Energy-Saving Mode”
  5. Turn it OFF by pressing Enter


Factory Reset [Method 8]

  1. Go to “Settings”
  2. Select “General”
  3. Scroll down to find “Reset.”
  4. Enter security code or “0000.”
  5. Set up your TV


Samsung Customer Support [Method 9]

If you have tried all the above-mentioned methods, but everything is in vain, the problem might be caused due to hardware issue. In that scenario, you need a professional to get your television to stop flickering.

If you have a Samsung warranty, it is rational to contact their customer support. They even offer in-home service. So, you don’t have to do anything and let a professional fix the flickering screen issue for you!


What does it mean when my Samsung TV is flickering?

If your Samsung TVsuddenly starts to flicker, it means whether the cable connection is loose or connection ports have malfunctioned.


Why is my Samsung TV flickering on and off?

If your Samsung TV, especially the Samsung H series, is flickering on and off, it might be due to the malfunctioned eco sensor.


How to Turn off Eco Sensor:

  1. Press the “Home” button on remote
  2. Navigate to “Settings”
  3. Choose “General”
  4. Select the “Eco Solution” option
  5. Turn off the “Power Saving Mode”


Why does my Samsung TV screen keep flickering lines?

The main cause of a Samsung TV flickering straight lines is power shortage due to loose cables or damaged cable connection.


How to fix flickering horizontal lines on a Samsung TV?

The horizontal lines on a Samsung TVcould be an indicator of screen damage, loose input cables and graphic failure.


How to Fit It:

  1. Check the lines are moving or permanent
  2. perform a picture test
  3. update the Samsung OS
  4. Factory reset the Samsung TV
  5. Check internet connection


Performing a Picture Test

  1. Press the “Home” button
  2. Go to “Settings”
  3. Open “Support”
  4. Navigate to “Device Care”
  5. Wait for a few seconds and select the “Self Diagnose” option
  6. Scroll the “Picture Test”
  7. Select “OK”


How to fix flickering vertical lines on a Samsung TV?

If your Samsung UHD TV is flickering vertical lines on the screen, it might be due to bad video cable. You can fix it by changing the cable connection.


How to Fix It:

  1. Check the HDMI cable
  2. If the cable is loose or damaged, change it
  3. Make sure your TV is connected to a stable internet
  4. If you are using cable service, check the TV box
  5. If you are using satellite service, reposition the dish


Why is my Samsung TV screen black and flickering?

Usually, the Samsung TV screen shows the black screen issue due to the Energy-Saving feature. This feature is available in most Samsung Smart TV models, including the Samsung QLED series.


How to Turn off the Energy Saving Feature on a Samsung TV:

  1. Press the “Home” button on the remote
  2. Navigate to “Settings”
  3. Go to “General”
  4. Choose the “Eco Solution” Option
  5. Select the “Power Saving Mode”
  6. Turn it OFF

Ernie Lo

Ernie Lo is a qualified web designer and web developer. He works as an IT support technician and website manager at Benleigh Vending, and he also fixes vending machines.

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