5 Tips To Fix Samsung TV Not Recognizing HDMI Input

High-Definition Media Interface (HDMI) is a digital interface used to transfer high-quality video, audio, and digital signals from a device to an HDTV. The HDMI is gradually replacing the analog interfaces.

The HDMI port is an essential feature to check when buying a TV or entertainment device. With an HDMI input, you can connect your Cable Box, Gaming Consoles, Xbox, Video projectors, Blu-ray, and other devices to your Samsung TV.

If you’ve connected your HDMI cable from your entertainment device or desktop computer to your Samsung TV, and you see the error message or it won’t connect, no need to panic. It could be that the HDMI cable is damaged or another minor issue. This article outlines some of the issues that could cause your Samsung TV not to recognize the HDMI input and possible solutions to solve the issue.

5 Reasons Why Samsung TV Isn’t Recognizing HDMI Input And Solutions

a. Issue With The HDMI Cable

One of the first things to check is your HDMI Cable. It could be that the HDMI cable wasn’t connected well on the device or it came out loose. Another option is that the HDMI cable may be bad. First, disconnect the cable from both the device and your TV HDMI port and reconnect again. Connect to the device first before you connect to your TV.

Also, most Samsung TVs come with more than one HDMI port. It could be that the commonly used port is bad. To check it, connect the cable to another device or an alternate port on your Samsung TV.

Finally, check the entire cable to ensure it’s not overly bent or cut. It could also be that the HDMI cable you have is not compatible with your device or Samsung TV. The option is to shop for a new HDMI cable. Buy HDMI Cable or 4k HDMI Cable on Amazon.

b. Check The Power Supply On The Devices

Another thing you have to check is the Power supply on the external device. It could be that the device isn’t properly plugging into the power source. Or, it could be that the device is connected to the power supply but not turned on.

First, check the device to make sure it’s plugged into the power supply. Not just that, you have to check that the power is stable and not fluctuating or too low. Use a Voltmeter to check the power readings.

Secondly, ensure you turn on the device before you plug in the cable in the port. You can go all the way with the steps below:

  • Unplug your device from the power source
  • Wait for ten to fifteen seconds
  • Plug back to the power source
  • Turn on the device,
  • Connect the HDMI cable.

c. Input Source Issue

As mentioned earlier, most Samsung HDTVs come with multiple HDMI ports. This allows you to plug in multiple devices at the same time. You have to select the correct input source for each port. For instance, if you’re using Port 1, you have to choose HDMI 1. The way to know the correct input source is to check the label beside each port.

It could be hard to check for this if you’ve mounted your TV on the wall. In that case, the best way to confirm is to try switching between the ports to get the correct one. One of the ports should be the right one for your TV.

d. Update Software for input

If your Samsung TV keeps losing HDMI signal, it could be a sign that you need to update the software for input on your TV. Follow the steps below to update the software for inputs on your TV.

  • Go to the ‘Settings’ Page
  • Click on ‘Support’
  • Select ‘Software Update’ from the menu
  • Select ‘update now’ to commence updating.

Also, you can set it to automatically update the software in the future. Follow the steps below to complete the process.

  • Go to the ‘Settings’ Page
  • Click on ‘Support’
  • Select Software Update from the menu
  • Toggle on the ‘Auto update’ option to turn it on.

e. Reset Your TV

Factory reset may be your final option to correct this issue. It restores your TV to its default setting. This should be your last resort because you will delete any prior saved settings on your TV. Follow the steps below to factory reset your TV.

  • Go to the ‘Settings’ Page
  • Select ‘General’ from the new menu.
  • Select the ‘Reset’ option
  • Enter the PIN (if you’ve set up one) or the 0000 which is the default PIN.
  • Select ‘Reset’
  • Select ‘OK’ to complete the process.


These are some of the tips to correct the issue. Finally, if any of the options don’t work, visit the Support Center and request repair services.