A high-quality picture is a basic requirement to watch a film or just to have the best entertainment in your home. In order to get that high-definition image, you need certain hardware.

The Samsung TV not recognizing HDMI input is one of the common problems with Samsung TV. Even though you have the best high-definition picture, there are chances your Samsung TV is not reading the input device.

It means if you connect any external devices like a laptop or DVD player with an HDMI cord, your Samsung TV doesn’t recognize these connections. You can still fix this problem with certain troubleshooting.

Samsung TV not recognizing HDMI input is a problem that many users have encountered. Even though the television set will output video and audio fine, it will not display video from devices that are plugged into the HDMI ports.

Before you call customer service for help, try troubleshooting on your own.

You will see a red light icon or no signal icon on your device, the Samsung TV not reading HDMI input. However, this problem is not with the cables or hardware of your devices.

How to Identify the Specific Problem With Your Samsung TV?

Let’s understand what could be the problem with your Samsung TV.

The following could be the reasons for Samsung TV not reading HDMI input device:

1) Damaged Cable

Most of the time, the problem with a Samsung TV not recognizing HDMI input is a faulty or damaged cable. Most of the time, you will get a picture from the cable but not sound.

In order to check if this is the case, connect a different cable and recheck it. If you don’t see a change in the picture or still hear sound from your cable but not from the HDMI-connected device, this may be the case.

2) Insufficient Power Supply

Another common reason for Samsung TV not recognizing HDMI input could be that the external device is not getting enough power. If the external devices are not getting sufficient power, they will not be recognized by your TV. In this case, check the power supply on the device.

Also, check if your TV gives enough power to the connected device. If you don’t see a change, in this case, you should contact the service center about this issue.

3) Input Source Issue

You may have connected your device to the HDMI port of your TV, but you still cannot get a picture. This may be because of the input source setting on your Samsung television.

You need to set your input source to HDMI or change the input mode to TV. You can do this by scrolling down on your Samsung remote and clicking on the Input source or TV/HDMI.

4) Outdated Firmware

If you do not update your TV’s firmware, it may cause problems like Samsung TV not recognizing HDMI input. To resolve the problem, you need to update the firmware.

5) Lose HDMI Cable on Both Ends

You need to check if the cable you are using is a loose one or has been disconnected from both devices. For example, if you have connected your laptop to the TV, make sure the HDMI cord is connected on both ends of the device. If there is a loose connection on any end, your TV won’t recognize the device.

These are some of the issues that may be causing Samsung TV not to recognize HDMI input. If there is no signal on the TV screen, first check your cord connection before calling the service center to avoid repair costs.

Make sure the cable is not damaged and you are using the right cable for your device. If there is damage or loss of connection on either end of the cable, your TV will not recognize the device.

Now we know what could cause the problem, let’s see how to troubleshoot it.

But before that:

If you are facing Samsung TV no signal issue, make sure the cable connection is correct.

If you are facing the Samsung TV with no HDMI input, make sure you have checked and changed the input source settings on your TV.

If you are facing Samsung LED not working, there is no power issue; make sure the cable connection is correct.

And if you are facing a Samsung smart LED not working, make sure you have checked the firmware of your TV and updated it.

Following are the possible solutions to the identified issues.

Solution 1: Check External Device Connection

First, check the cable connection between your device and the TV. Ensure that all ends of the cable are connected securely on both ends. Also, check the cables and wires for any damage.

The solution to Samsung TV not recognizing HDMI input is to check the connection of external devices. Ensure there is no loose connection on either end of the HDMI cord. If you cannot view the picture even after checking the connection, try connecting your HDMI device to another TV.

If you can view the image, then it means the cable is damaged and will need replacement.

Check the power indicator; it must be yellow. If it is a yellow indicator, then the cable connection is fine, and you have selected the right input source on your TV.

Now after that, check the power connection on both ends of your device. Double-check the connections on all ends of your device. If you find a loose connection anywhere, get it fixed.

Solution 2: Only TV or HDMI Input Source Selected on the TV’s Input List

The right input is necessary for your TV to recognize HDMI input. If only ‘TV’ or ‘HDMI’ is selected, the TV won’t be able to recognize external devices.

Thus, if you are facing Samsung TV with no HDMI input issue, make sure the right input source is selected on your smart TV.

Connect your device to the right HDMI port if you are using a smart TV. If you are using an LED TV, make sure it is connected to the HDMI port labeled ‘HDMI1’ or ‘ARC.’

Now, click on your remote’s input button and click on the TV or HDMI option. This should fix your issue. For example, if you have connected your laptop to the TV using an HDMI cable, make sure you have selected the input source as TV or use HDMI.

Solution 3: Power Management

Now that’s done, check the power connection of your devices. Ensure that all devices are plugged in and switched on.

For instance, if you see the blinking of light and turning off the external device, that’s a strong indicator that you might face power management issues. This indicates that the device is running on a low power supply.

This is another reason for Samsung TV not recognizing HDMI input. Voltage management devices run on a balanced power supply and prevent damage to the external devices. So, always use voltage management devices for a balanced power supply while using electrical appliances.


To check the voltage of your device, connect a voltmeter to the live wire of the socket. You can also use a voltmeter to check the live wire and its corresponding neutral wire.

If electricity is running through the live wire, it means everything is fine. If it is not, then there is a high chance that your device’s power supply was cut off.

Follow these instructions to check the power connection of the device:

  • Remove the device from the power source after 15 seconds.
  • Then unplug it.
  • After that, wait for 15 seconds before re-plugging it back.

Solution 4: Check the HDMI Table and Verify it

Damaged HMDI cable is the biggest reason behind Samsung TV No HDMI input. Also, if the device’s power supply is low, it will lead to bad picture quality.

So firstly, check your HDMI table by following these steps:

Utilize Multimeter:

You can check the cable’s condition with a multimeter. To do so, connect the multimeter probes to the pins and wiggle the wire at the breakpoint. If the multimeter flickers, the wire is damaged and will need replacement.

If you find a loose connection on either end of your HDMI cord, that’s another reason to worry about.

In case the cable is broken, I would suggest replacing it as soon as possible. Also, make sure to use a certified HDMI cord from the market.

Also, check if your High Definition Multimedia Interface (HDMI) cord is damaged. If the cord has any cut, frayed wires, or if it’s overheating, you will not be able to see a picture or hear any sounds. Thus, always check the health of your HDMI cord before using it with other devices.

Solution 5: Update Your Smart TV

Another common reason for Samsung TV not recognizing HDMI input is if your device’s software isn’t updated.

To fix this issue, you can update your device’s software and see if that makes any difference.

If you use a smart TV, make sure the TV itself is updated.

You might have recently updated your TV’s software. If that’s the case, wait for a day to see if it works fine. If not, go further. Update your HDMI source device’s software as well. Just follow these instructions it.

Go to Setting > Support > Software Upgrade

Your HDMI source device’s software will automatically update if the TV’s software is upgraded first.

Solution 6: Time to Factory Reset

If nothing works, it’s time to perform a factory reset.

Before doing anything else, make sure the HDMI device is connected with your TV via an input source and then perform a factory reset.

  • Press and hold the power button till you hear a beeping sound.
  • Now, press the up and down volume keys for a few seconds.
  • After that, press the power button to confirm.
  • Wait for 10 minutes and then turn on your device.
  • This will help in resolving Samsung TV not recognizing HDMI input issue.

Solution 7: HDMI Ports

Some TVs have a single port for plugging in external devices, while some TVs come with multiple ports to connect several devices at once.

If you’re using a multiple port TV, make sure your HDMI source device is plugged into the correct port.

Also, check if all the ports are working fine by connecting to another device. Firstly, to fix this problem, unplug all the devices connected with your Samsung TV. Now, carefully check if any of the HDMI ports are crumbled. If yes, then you need to change the port itself.

If there is no problem with ports, connect your HDMI cable again and see if this works. If not, I would suggest connecting the cable with a different port.

Here is a very useful video that you can watch to understand these methods in a practical way:

Solution 8: Change the Order You Turn on the Device

Here is another solution:

For this, you need to unplug all your devices and then turn them on. Now, connect your other device via an HDMI cable. This time your TV should have no issues recognizing the input source.

If nothing works, try changing the order in which you turn on your devices.

For instance, if you’re using an Xbox, turn it on and then power on your TV. If you’re using a cable box, connect it to your TV first and then turn on the TV. This should fix the problem.

Solution 9: Customer Support

I’m sure one of the methods above would work for you, but I would suggest you contact your customer support if they don’t. Most of the time, customer support will be able to fix this issue over the phone.

You can also try sending a message or email to your manufacturer’s customer support and ask them to help you fix the HDMI issue.

Contacting customer support will resolve Samsung TV not recognizing HDMI input error.


Are HDMI Ports Both Input and Output?

No, HDMI ports on your TV are only input. They cannot serve as an output source for other devices.

What is a Display Port vs HDMI?

Ports only deliver video while an HDMI cable delivers both audio and video.

Do all HDMI ports support 4K?

Yes, but HDMI 2.0 ports allow for high-resolution output at 60 Hz, which is the standard for 4K video.


I would say that if you are facing this issue, make sure to check the health of your HDMI cable. If it has any cut or frayed wires, you should change or repair it. If this doesn’t help, try changing your devices’ ports.

If the problem persists, backup all your data and reset your TV to factory defaults.

If none of the methods work, then proceed to contact customer support or buy a new or used TV.

We hope you found this article helpful. If so, share the article with your friends who might be facing similar issues.  

Tim Miller

Tim has always been obsessed with computers his whole life. After working for 25 years in the computer and electronics field, he now enjoys writing about computers to help others. Most of his time is spent in front of his computer or other technology to continue to learn more. He likes to try new things and keep up with the latest industry trends so he can share them with others.

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