6 Ways To Fix Mode Not Supported On Samsung TV

Samsung TVs feature different connectivity types that allow screen mirroring and data sharing either through VGA or HDMI. Once a connection is made, you should be able to view your computer screen on your TV.

However, if you get an error prompt – mode not supported, that means the TV cannot process the data being sent through HDMI or VGA. You can fix this error with some simple hacks we will be recommending.

Samsung TV Mode Not Supported Error

Usually, you will get the mode not supported error on your Samsung TV when the screen resolution has not been configured, leading to a miscommunication between the TV and the PC.

Once this error occurs, your TV will not be able to display pictures. Consequently, the TV will be unable to read signals and data from the PC.

Samsung TVs support different resolutions, and each model can display a different size of pictures. So, you might get the mode not supported error if the image resolution being processed is too high or too small.

Mostly, your Samsung TV will come with a user manual that carries the information of all you need to know about your Samsung TV. In this manual, you will find your Samsung TV’s supported resolutions. The most common resolutions are 720p and 1080p.

How to Fix Samsung TV Mode Not Supported – 6 Ways

Generally, you will get the mode not supported error message when you connect a device such as a DVD player, cable box, flash stick, etc., that is set to a resolution that your TV does not support.

Below are five possible fixes to resolve mode not supported error on Samsung TV:

1. Cast a Supported Resolution

Ensure that the device you are connecting to your TV must output a support resolution. Most Samsung TVs support the following resolutions:

  • 480i/p (640 x 480)
  • 720p (1280 x 720)
  • 1080i/p (1920 x 1080)
  • 2160p (3840/4096 x 2160)

2. Power Reset the TV and External Drive

The error message might be a glitch from either the TV or the external device. A power reset will likely resolve this error. To perform a power reset on your Samsung TV:

  • Power off your TV and external device
  • Wait for about 15 seconds for any residual power to drain out
  • Then power on both devices

This process allows the HDMI signal to be validated, hence sending the correct resolution between both devices.

3. Update the TV Software

Most times, if your Samsung TV is outdated, there will be different glitches and errors. It is advisable to update your software periodically to ensure that all bugs are fixed. You can set an automatic update or perform a manual update. You can set automatic updates by:

  • On your TV remote, navigate to the settings page
  • Click on Support
  • Then select Software update
  • Click on the Auto-Update feature
  • Select ON and click OK to save changes

Alternatively, you can perform a manual software update on your TV by:

  • Using your TV remote, click on the Menu button
  • Navigate to the Settings page
  • Then click on Software update
  • Select the Update Now Option

4. Use a Moderately Long HDMI Cable

On many occasions, the issue is with the HDMI cable. If the cable is too long, there might be a glitch transmitting data. It is advisable to use an HDMI cable between 6 and 8 feet long. Also, if you are using a cable longer than 12 feet, ensure it is an ISF-rated cable.

5. Set an Output Resolution on the External Drive

It is possible to set the resolution settings on your external device to automatically detect the resolution that will produce the best display to the content being displayed.

In addition, you can set the resolution to the highest that supports both your TV and external device. Below is a guide on how to set the resolution on your PC:

  • On your PC, navigate to the search bar
  • Search for Screen Resolution
  • Select the Resolution menu and navigate down to “1024×768.”
  • Proceed to select Advanced Settings
  • Then click on Monitor
  • Choose “60 Hertz “ under “Screen Refresh Rate”
  • Click on Apply and OK to setting changes

6. Change the HDMI Device

The issue might be the signal being sent from the HDMI device. Try using a second HDMI device at the exact resolution. If it does not show the error message, then the issue is with the HDMI device.


As mentioned above, there are a couple of reasons why your TV might be showing mode not supported error. However, with our simple fix recommendations above, you should be able to resolve the issue. Alternatively, you can contact Samsung Support to get possible solutions to this error.

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