- Many Samsung TV s are experiencing a dark screen on one side, rendering the TV unusable for family viewing.
- The issue can be caused by incorrect shutdown, remote settings, or external device interference.
- Solutions include restarting the TV, checking external connections, troubleshooting the remote, and resetting the TV to factory settings. If issues persist, seek help from an authorized service center.
Samsung TVs continue to be one of the top-selling smart TVs globally in 2025, offering crisp visuals and modern features. However, a common issue still troubling many s is the “half screen dark on one side” problem. Whether it’s a hardware failure or a temporary glitch, this guide will walk you through the latest working fixes for this issue.
What Causes Samsung TV’s Half Screen to Be Darker on One Side? 4b282h
Samsung TV dark on one side can be caused by multiple reasons. The first being that your TV was incorrectly turned off, like the electricity went off, or you pulled the plug forcefully. If this is the case, you need to take your TV to the service station because the TFT might be destroyed or the IC might be fried.
If some kid played with the remote, it is possible that the settings have been tweaked and nothing serious has happened, so you can reset the settings and get it back running. The last reason is that some external devices are causing issues, as seen in the case of Hisense TVs. Well, whatever the reason, here’s a complete list of fixes to get your TV back up and running.
Samsung TV Screen Dark on Left or Right Side? 2025 Fixes Inside 1565t
Here are some of the potential fixes that will resolve your Samsung TV’s dark on-one-side issue. We recommend that you go through all the fixes because that way, you can figure out whether you need to go visit the service center or not.
Restart Your TV 186e66
One of the easiest fixes to resolve the Samsung TV screen dark on one side is to restart it. But this restart is not a regular one. Turn off your TV, remove the power socket and wait for 5 minutes until you turn it back on.
Keeping it disconnected for 5 minutes will ensure that the residual power is removed and your TV is back up and running. If this didn’t help, follow up with the next fix.
Check External Connections 4v6s67
If you are using your TV with a help of a wired connection, disconnect it and connect it back. If you are using an HDMI cable from your computer, check whether the cable is fine by using it somewhere else.
Disconnect your Set-Top box (If using one) and then turn on your TV to check whether the issue persists. You can also remove every additional component and run it free to check. If the issue is still there, move to the next fix.
Use the Remote 3u4d2x
If the above fixes haven’t helped, it is possible that the issue is caused by the remote. To troubleshoot your remote, remove the batteries from your remote and press the power button for 1 minute. Now put the batteries back, turn on the TV and check whether the half side is still dark or not.
Run a Picture Test (Built-in Diagnostic Feature) – New in Modern Samsung TVs 435o48
If you’re not sure whether the problem is caused by the TV’s hardware or an external device (like a set-top box or HDMI cable), running a picture test is the easiest way to find out.
How to run a picture test:
- Press the Home button on your remote.
- Go to Settings > .
- Choose Device Care > Self Diagnosis.
- Select Picture Test.
Samsung will now display an internal test image.
- If the image is also dark on one side, your TV’s , T-CON board, or backlight might be faulty.
- If the test image is normal, your external devices, input settings, or cables are the problem.
This method is highly recommended in 2025, as newer Samsung TV models (2022 and later) have this built-in, and it helps s avoid unnecessary repairs.
Update Samsung TV Firmware – Important Fix for 2025 o5t13
In late 2024, Samsung pushed multiple firmware updates to fix issues related to screen dimming, LED backlight bugs, and image processing. Many s confirmed that updating their Samsung Smart TV firmware completely resolved the dark-on-one-side issue.
Steps to update your Samsung TV firmware:
- Press the Home button on your remote.
- Go to Settings > .
- Select Software Update > Update Now.
⚠️ Make sure your TV is connected to Wi-Fi for this to work.
If your TV is not connected to the internet:
- Visit the Samsung Firmware Page.
- Enter your TV model number.
- the latest firmware to a USB drive and plug it into your TV.
- Go to Settings > > Software Update > Update via USB.
Why this works: Samsung’s newer firmware improves compatibility with external devices, optimizes the picture processor, and solves many known bugs that cause partial screen dimming.
Check for T-Con Board or Backlight Failure b6z2g
Many Samsung TVs from 2019–2021 are now out of warranty and reaching the age where T-Con board failures and backlight degradation become common. If your half-dark screen appeared suddenly and no software fixes help, this might be the issue.
Common signs of T-Con board or LED backlight failure:
- One side of the screen is completely black or significantly dimmer.
- Flashlight test: If shining a flashlight on the dark part of the screen reveals an image, your backlight is broken.
- Flickering or color banding on one side.
What you should do:
- If your TV is under warranty: Take it to a Samsung Authorized Service Center.
- If not, consult a local certified technician and mention the T-Con board or LED strip light as possible culprits.
Bonus Tip: Enable “Eco Solution” Settings (Power Optimization Bug Fix) 1s1p6z
Some Samsung s in 2025 have reported that disabling power-saving features helped fix their half-screen dimming problem.
To disable Eco settings:
- Go to Settings > General > Eco Solution.
- Turn off the following:
- Ambient Light Detection
- Minimum Backlight
- Energy Saving Mode
While this may slightly increase power usage, it can restore full screen brightness if the power-saving mode was causing uneven lighting.
Reset Your TV 1t6o6b
You are already facing dark on one side of your TV, but if you can see something on your TV, it is worth giving resetting a shot. Resetting will fix your issues depending of what has happened, as it will restore your TV to factory condition. Follow these steps to reset your TV.
- Using your remote, open Settings.
- While you are in General, scroll down and go to Reset.
- It will ask you for your PIN. If you haven’t changed your PIN, the default PIN is 0000.
- Once you click Reset, your TV will take a few minutes and restart.
- In case your TV is purchased before 2018, go to Settings>>Self Diagnosis.
- This process is similar to resetting and will also take a few minutes.
When the process is complete, your TV should be working fine. If not, your LCD or TFT is destroyed, and you need to take it to the Samsung service station.
The Bottom Line 6j2262
Well, that’s all we have here about how you can fix the Samsung TV screen dark on one side issue. We hope this guide has helped you. Suppose the above solutions don’t help you and you need to go to a Service Center. In that case, we recommend that you repair your TV at an authorized dealer and not anywhere else because that way, you will get an additional warranty on the replaced item.
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