No signal from Samsung TV HDMI ports? The fix!

HDMI is a critical component of an entertainment setup. It is the standard connection cable for Samsung TVs, video projectors, gaming consoles, streaming players, and set-top boxes.

If you connect an external media player like a set-top box, Xbox, desktop computer, or PlayStation, it should show up on your Samsung TV.

But if it does not, or if the Samsung TV HDMI port shows a red power icon, you will see an error message like no signal. When that happens, it means the HDMI ports have an issue that you need to fix.

Generally, a Samsung TV won’t recognize HDMI cable, even after connecting it correctly, if the HDMI is damaged or the resolution from your input is not compatible with the requirements of your Samsung TV.

To tell the exact problem, you need to switch your HDMI cable or connect to a different device.

Of course, there are other factors to consider. Read on for a more detailed insight into this issue and a complete troubleshooting guide to help you fix the problem.

Why Samsung TV HDMI ports are not working

The HDMI ports on your Samsung TV are not working because of any or a combination of these reasons:

  • You have set your TV to an input that does not have any device connected.
  • The source does not have power or is off.
  • The HDMI cable has come out loose on both ends.
  • The resolution on your source does not match that of your Samsung TV.
  • You are using a damaged HDMI cable.
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The turn-on sequence for your devices could also be another reason why you are getting no HDMI signal on Samsung TV.

Try out these troubleshooting tips to fix the “HDMI no signal” error on Samsung TV:

Verify that you have powered on the connected device

Newer Samsung TVs (those manufactured after 2017) should detect a device once you connect it via HDMI automatically. But that cannot happen if the power on the connected device is off.

  • Power off the external device.
  • Wait for about ten seconds.
  • Power it back on.

Try using your TV to see if the solution works.

Select the correct input source on your TV

When you connect an external device to your Samsung TV, the first thing you have to do is to set the source on the TV to the same port to which you connected the device.

In other words, if you connected your gaming console to HDMI 1 port, then set the source on the TV to HDMI 1.

If the TV shows no signal when HDMI is plugged in, it could mean you have mixed up the ports.

Reconnect the HDMI cable

The HDMI cable may have come out loose, or you have not connected it correctly. Consider disconnecting it from the back of your TV and your source.

Also, do the same if you get the issue of your Samsung TV not detecting HDMI from a PC.

Once done:

  • Reconnect the HDMI cable firmly to the external device first or PC.
  • Next, connect it to your TV.

If that does not work then try connecting the cable to a different port.

As outlined in step two above, you will have to select the new source on your TV.

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Use a different HDMI cable

You may be using a cable that is not compatible with your TV. Also, a damaged HDMI cord can prevent you from connecting.

Try a different HDMI cable to connect your Xbox, PlayStation, or Roku to the Samsung TV or any other device.

If the cable seems to be the issue, consider getting a new one. I recommend the iVanky high-speed braided cable because it is suitable for streaming HD content without lagging and it is braided meaning that there are minimal chances of damage.

Change the order in which you turn on your devices

If you turn on your TV first, then the external devices next, try to change the turn-on sequence. In other words, turn on the external device first, followed by your Samsung TV.

If that order works, consider using it henceforth.

Power-cycle the external device

When you power-cycle the external or input source, you will refresh its parameters and allow it to start anew.

  • Unplug the device from the power strip or wall outlet.
  • Wait for about 60 seconds.
  • Plug the source input back in.

Turn on the power and try again. Also, consider power-cycling your TV by following the steps above. It will help to reset the TV.

Check for software updates

You can resolve some HDMI handshake issues by updating the software for your inputs. The step is essential if your Samsung TV keeps losing HDMI signal. In this case, the following is what you should do:

  • Go to Settings.
  • Select Support.
  • Select Software Update.
  • Select Update Now.

You can also turn the option ON so that it can update automatically.

  • Go to Settings.
  • Select Support.
  • Select Software Update.
  • Highlight Auto Update.
  • Turn the option ON.
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Your TV will update automatically. Once done, try connecting your external input and see whether it works.

Understand that although updating your Samsung TV software is essential, many users have come across the problem after upgrading their firmware.

In that case, you will have to contact your TV manufacturer for further assistance.

Factory reset your Samsung TV

A factory reset will allow you to start over. It will remove the settings, which means you will have to set HDMI inputs afresh. Here is how:

  • Open Settings.
  • Select General.
  • Select Reset.
  • Enter your PIN or 0000.
  • Select Reset.
  • Select OK to complete the reset.

You can also navigate to Settings > Support > Self Diagnosis > Reset.

Connect a different external device

The purpose of this troubleshooting step is to determine whether the issue is with the original external device or your TV. For example, try to connect your PC instead of your set-top box.

If the PC works, then you have a problem with the set-top box. In that case, contact the manufacturer for assistance. Also, if both show the error and you have gone through the steps outlined above, you need to service your TV.

Visit the Samsung support center to request repair service.

Conclusion

Whenever you connect an external device, and you notice that Samsung TV won’t switch to HDMI, try to troubleshoot the problem to find a solution. The first thing to do is to ensure you have selected the right input source.

Also, check that the HDMI cable is not loose on both ends. You can try to use a different cord or reverse the turn-on sequence for your inputs.

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