How To Fix No Signal Error When HDMI is Plugged in Samsung Smart TV

It can be incredibly annoying to get the no signal error when your HDMI cable is already plugged into your TV. But why does it happen? And how can we fix it? In this quick and simple tutorial, we will walk you through the process. 

Things to Check Before You Start

  • Check that the HDMI cable is properly connected and undamaged. You can also disconnect and check inside the end of the cables and ports to make sure there is no visible internal damage.
  • Check the settings of both your source device and your Samsung Smart TV, you may have it set up wrong or accidentally changed it.
  • Press ‘source’ on your remote control to select the connected source device.

Note: there are several source channels. Make sure you are checking all of them.

No Signal Error When HDMI is Plugged in Samsung Smart TV

First solution: Unplug all devices and reset.

  1. Power off and disconnect all HDMI devices connected to tv
  2. Turn off the Samsung smart tv. Unplug the power from the wall socket.
  3. Press and hold the power button on the Samsung smart TV for 30 seconds
  4. Reattach all of the HDMI cables and devices to the HDMI ports on the Samsung smart TV.
  5. Plug the Samsung smart TV’s power cable back into the wall socket.
  6. Repeat the steps if required

With any luck, this should fix your no signal error when the HDMI cable is already connected to your Samsung smart TV. It is simple, and also the most common fix that is reported to work. If the problem persists, try one of the steps below.

Second Solution: Perform a factory reset on your Samsung Smart TV

No Signal Error When HDMI is Plugged in Samsung Smart TV
  1. With the Samsung Smart TV off, locate your TV remote, press mute 1,8,2, and then the power button.
  2. If done correctly, your Samsung Smart TV should have turned on and displayed a factory options menu.
  3. Select ‘Options’
  4. Next, select ‘Factory Reset’
  5. Your Samsung Smart TV will now reset itself. It should turn back on automatically so don’t press anything else.
  6. Once your Samsung Smart TV is back on, reconnect all HDMI cables to the relevant ports and check the signal again.

Note: When performing a factory reset on your Samsung Smart TV, it will take everything back to its default settings. You will likely need to re-tune your channels and set up your audio/subtitle options to your preference again.

Final Tips

If none of the above solutions are fixing the no signal error on your Samsung Smart TV, it may be more of a physical problem. Don’t worry, there are still a few things you can try that may help fix the no signal error.

First, disconnect all cables and power down both the Samsung Smart TV and the HDMI-connected devices. Then, check inside the ends of the cables to look for dust, obstructions, or bent pins of connections. If you spot an obstruction, clear it out, or blow out the dust. Repeat the step for all cables and ports. Then, perform solution two, by performing a factory reset, then reconnect all devices.

If your Samsung Smart TV is still displaying the no signal error after you have performed all of these steps, the problem is likely either with the cable itself, or the television. Try a different cable, or contact the manufacturer.

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About Mike Herrera

Mike is a freelance journalist who specializes in writing about technology. He has a degree in computer science, and he likes to stay up-to-date on the latest software releases. He's an avid reader, and he enjoys spending time outdoors. When he's not working, you can usually find him playing video games or exploring new hiking trails.

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