HDMI is essential for Samsung TVs to function well and offer the best experience. The TVs connect to HDMI via a standard HDMI connection. This allows them to communicate with other devices, such as set-top boxes and gaming consoles.
This means that if your Samsung TV Not Recognizing HDMI Input, or you get the no signal error when you plug in your HDMI cable, you won’t be able to access any external services. This problem needs immediate attention.
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Samsung TV Not Recognizing HDMI Input
Why won’t my TV recognize my HDMI? (And Why Does It Say No Signal?
You have used your Samsung TV for a while now. It has been connected to many devices. Then suddenly, the TV stops recognizing the HDMI signal and says there is no signal. You might also try to connect to a new device. The TV doesn’t recognize the HDMI cable.
Many factors could cause this problem. These factors and the solutions to them should be obvious. Find out more by reading the following.
The Right Source hasn’t been selected.
Samsung TVs are designed systematically and intelligently. Samsung understands that there will be many sources of content for their TVs.
To get the content you love, you will need multiple devices on your TV. This means that you might have your top-box connected, streaming player or gaming console altogether.
All these sources will be available to you simultaneously on your TV. You must choose the source that you want to watch when you are watching. If your TV has three HDMI ports and you have all connected to it, you will need to choose the right source to allow it to play what content you want.
If you try to correct an error from a different source, you will likely make this mistake again. Don’t rush, but do it correctly.
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Fix: Choose the Correct Source

To get your TV to function as you wish, it must be connected to the right source. You cannot expect your streaming player to work if it is connected to HDMI 1. Select the HDMI 1 option on your TV.
The source button on the remote can be used to select the right source for your Samsung TV. These steps should follow if your remote features a source button.
1. Take your Samsung TV remote gadget.
2. Look for the button “Source” on your remote. Look for the button in the upper right corner of your remote.
3. Click on the button to see a list of resources you should choose from.
4. After you have compiled the source list, you can check the back of your TV to see which HDMI port you are using for which device.
5. Select the source you want to see on your TV screen.
This is how you select the right source from the Samsung TV menu. This method can also be used if your remote doesn’t have a source button.
1. Use your remote control to press the “Menu Button” button
2. The Main menu will be displayed on the TV.
3. Navigate through the menu to find “Source.”
4. Choose the “Source” option.
5. This page lists all connected devices.
6. Find the HDMI port you are using, and then choose the correct device source.
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Poor HDMI Cable Connection

If your Samsung TV does not recognize the HDMI cable, you may be unaware of a bad connection. The priority is given to the HDMI cable, and errors will be detected if there is no good connection.
HDMI cables transmit high amounts of data in a short time. They are also very sensitive. Your HDMI cables can also affect the behaviour of your Samsung TV.
If your HDMI cable is in poor condition, it could be why your Samsung TV doesn’t recognize it. Many factors can cause poor HDMI connections.
You can have a loose connection, a faulty HDMI cable or broken HDMI ports. Or bent cables that cannot transmit data as expected. These are just a few of the possible solutions.
Repair – Connect HDMI Cable
Your HDMI cable may not be connected properly. You may not be able to find it. This could be an issue if you’ve been doing activities around the TV and accidentally touching the cable. There may be children in your home who can touch the cable, which you don’t know.
You need to inspect the cable that connects to your TV. Make sure you check the cable before connecting it to your TV. You should remove the cable from your TV and then reconnect it securely to be certain.
2 – Switch Ports
Are your HDMI ports functioning properly? The HDMI ports on your Samsung TV could fail or stop working, just like other devices.
Once you’ve checked your HDMI cable connection and found it to be in good condition, it’s time to check the ports.
You can switch to another port and see how your TV performs. You should also inspect the third port. Failure in one port does NOT necessarily mean failure at all ports.
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3 – Use a different HDMI Cable
You have now checked the HDMI cable connection and still, encounter the same problem. The TV doesn’t recognize the HDMI cable even though you have switched the ports. What else could be causing the problem?
The HDMI cable you use may be the problem. There are many reasons why your HDMI cable might not work with your TV. You might have damaged the cable or used an incompatible cable.
You can only find out by using another HDMI cable. You can find a new HDMI cable compatible with your devices and then try it out.
Repair 4 – Replacing HDMI Cable
You may not always have the opportunity to borrow a cable from a friend or house to use on your TV. You may also find signs on the cable that it is damaged and needs replacing.
You should replace the cable if you see broken or bent sections, corrosion, short circuits, or other damage (view on Amazon). You might not know that the damage may be in the cables themselves.
Make sure to get a quality replacement HDMI cable. For better performance, purchasing a 4K speed, HDMI Cable is recommended.
Problem with the External Device

Your external device may be why your Samsung TV does not recognize your HDMI cable. Many people connect their TVs to external devices. This does not necessarily mean that they are in perfect operating condition.
It’s like using your phone’s earphones. It could be your phone or your earphones that are causing the problem.
This could be because your Samsung TV cannot recognize your external device. This is something you need to address. You can have it on any device. These are just a few of the options.
Connect an External Device to Check if It Works
You must first check if the external device is having problems. You might not be able to identify the problem, but it could be that your device is having problems. Connecting an external device to the device will allow you to identify the problem.
You don’t have to use the exact same type of device. This means that even if the device is a gaming console, you don’t have to connect it to another gaming console. Another device can be used with the same HDMI cable. Then you can test if your TV recognizes it. If the new device works, you’ll know that the problem was with the original.
1 – Turn on Sequence
You can fix the problem by changing the way you turn your devices on in certain cases. This can be changed by turning on the TV first, then switching on the other devices.
This involves changing how you conduct the entire process. You will need to note how you turn the devices on and then change the order. This process should work if it works.
2 – Check for errors with an External Device
You may find yourself using a complicated device that can cause problems if it is not working properly. This is the case when you use a streaming device or a gaming console. Many external devices can be connected to your Samsung TV using HDMI cables.
Here’s what you need to do. First, identify the device that you are connecting to your TV. Next, analyze it for any errors that could be affecting the HDMI connection to your Samsung TV.
Repair 3 – Restart External device
External devices, such as streaming devices and gaming consoles may experience errors that can be fixed with a restart. You may have bugs stored on the device. Turn off the external device and wait around one minute before turning it back on. The TV should then be reconnected.
Repair 4 – Reset External device
It is possible to reset your external device and fix any problems. Many external devices can clear errors and restart the process.
You need to know how to reset an external device. If you don’t know what to do, here are the steps.
1. Check that the external device remains on.
2. Unplug the external device from the power source. This can be done by unplugging the power cord or wall cable.
3. Give it around one minute.
4. Reconnect the power supply cable.
5. Turn on the external device, and you will see if the problem has been resolved.
Bug
Samsung TV sets are high quality, but some issues cannot be avoided. All technological devices are susceptible to bugs, and the Samsung TV is no exception. Many factors can cause bugs in devices, most of which users are not able to pinpoint.
Although bugs are not common in Samsung TVs, they do occasionally occur and can cause problems. This type of problem can be caused by bugs or glitches in different components and systems.
One of the most surprising facts about bugs is their inability to cause failures in the device’s performance. They will only cause certain malfunctions. You should find out if your TV has a bug and fix it. These are the methods to use.
Repair – Restart TV
You give your Samsung TV a chance for all bugs to be fixed by restarting it. This is an easy way to fix any bugs that may have been causing these problems. These steps will allow you to restart your Samsung TV.
1. This process can be done with your removal.
2. Hold the remote for approximately 60 seconds and press the “Power Button”.
3. The restart process will start after 60 seconds.
4. Continue holding down the power button.
5. After a few seconds, the TV will automatically turn on and turn off.
6. This is the end of the process. The issue should now be resolved.
2 – Replug TV
Sometimes, restarting your TV won’t fix the problem. You don’t have to give up; there are many other ways you can fix the problem and continue using your HDMI. You will need to plug your TV in again.
Follow these steps, and you will be fine.
1. Check that your Samsung TV remains on.
2. Unplug or pull out the main power cord.
3. Give it around 60 seconds.
4. Turn on the TV by plugging the power cord in the back.
Fix 3 – Reset HDMI Ports
The Samsung HDMI ports work in a particular way and may have bugs that could cause the TV to not recognize your HDMI. It is possible to reset your ports. Resetting ports will fix all bugs and make them work again. The next step is to troubleshoot the ports and then reset them. These are the steps.
1. Switch off all devices connected to your Samsung TV via HDMI cables.
2. You can also unplug or disconnect all HDMI cables from the TV.
3. Now turn off your Samsung TV.
4. Also, unplug the TV from its wall socket.
5. Give it around 10 minutes.
6. Hold the power button for 30 seconds while the TV is still unplugged from its wall socket.
7. Plug the HDMI cables that you have removed back in.
8. Connect the Samsung TV to the wall power outlet.
9. You can also plug your devices back into power.
10. Now, turn on the TV and your devices.
Repair 4 – Factory Set TV
If none of the methods above work, you can try the Samsung TV factory reset option. This option will wipe all settings and data from your Samsung TV. It is not a final resort option to resolve all problems and remove bugs.
These are the steps you need to take to reset your Samsung TV.
1. You should ensure your TV is visible on the main screen.
2. Open your Samsung TV settings option.
3. Scroll down to the Settings menu and find the General option. Click it and choose it.
4. Scroll down to the bottom of your menu and find the “Reset” option.
5. Select the “Reset” option.
6. A PIN will be required. The PIN should normally be (0000).
7. Select “Reset” now
8. Continue the process by selecting OK.
9. The TV will initiate a reset and restart process.
Another reset is designed to fix the problem with your HDMI ports. Here’s how it works.
1. Turn off your Samsung TV first.
2. Next, unplug your power cord and wait 10 minutes.
3. Allow the devices to rest for 10 minutes.
4. Unplug all cables that are connected to HDMI ports.
5. Hold the remote’s exit button for 30 seconds. You can also press the Mute 1, 8, 2 and power on buttons in any order.
6. The factory reset screen will appear on your Samsung TV when it turns on.
7. Select “Option” now
8. Choose “Factory Reset”.
9. The TV will then automatically turn off.
10. Click the “Power On” button. The TV will turn on and display the original setup menu
11. Connect all devices to the HDMI ports.
Fix 5 – Contact Samsung
You may need to perform some of the troubleshooting steps above. In these cases, Samsung TV might not recognize HDMI. You should consult the Samsung support team, who will be able to help you.
Clogged port or HDMI
Dirt is bad. Dirt can cause damage to electronic devices. You may not be aware of the consequences of leaving your TV in dusty areas for too long.
The Samsung TV HDMI ports can become clogged by foreign material, dust and other debris. Dust and other debris can build up on your HDMI ports. This creates resistance, making connecting with your HDMI cable more difficult.
This isn’t just dust. Other foreign materials can land on your TV’s HDMI ports, causing significant clogging. Material such as loose fibres can also cause problems with the HDMI cable’s connection.
The ports may not have been used for some time, and you never know what might be in them. Children can also touch the ports, and they are easy to insert objects. You should inspect your HDMI ports for any signs of clogging.
HDMI cables can also have this problem. If you leave HDMI cables lying around on the ground or unattended, dirt and other debris can build up.
Repair – Clear Out HDMI Port and HDMI
Cleaning your HDMI or HDMI ports is the best way to fix them if they become clogged. The first thing to remember is that HDMI cables and ports are sensitive. They must be kept dry, even if you need to clean them. They can short-circuit and even cause damage to your Samsung TV.
These steps will help you clean your HDMI ports.
1. Turn off your Samsun TV.
2. Get a piece of cloth that is lint-free. This is important because it won’t leave fibres in your ports.
3. Also, get denatured alcohol. It can be used in place of water. Use water sparingly.
4. Use a small amount of denatured alcohol to treat the small piece.
5. To clean the HDMI cable, use a cloth.
6. To remove dust and clogging, push the cloth into the HDMI cable openings with a small toothpick.
7. Allow the alcohol to dry completely.
8. After the alcohol has dried, you can turn the TV on again.
9. Connect the HDMI cables to the external devices.
10. Verify that your Samsung TV can now recognize the HDMI.
Software out of date
Another problem that could cause your Samsung TV to not recognize HDMI is the issue with the software update. Samsung TV functions like other devices that need software and firmware to function properly.
However, technology is constantly evolving, and manufacturers must keep up with it. It is important that your Samsung TV keeps up with the latest technology trends.
These software updates will be available from Samsung, so all you need to do is update your TV and install them.
If your TV’s software is outdated, the TV may have problems recognizing and detecting HDMI. You may have used your TV for a while without realizing that it is necessary.
Repair 1 – Verify Any Pending Software Update
A pending software upgrade can occur if someone attempts to update their TV’s software but stops short of the end. Although there are many reasons why the update might not work, eventually, it will.
This will require you to either update the existing one or complete it.
2 – Update TV Firmware
If your TV has been in use for a while without updating its firmware, the software is outdated. The current firmware won’t be able to perform several functions. These are the steps you need to take to update your Samsung TV firmware.
1. Go to the settings of your Samsung TV.
2. Scroll down and choose the “Support” option.
3. Scroll down and choose the “Software Update” option.
4. Choose the “Update Now” option.
After completing the process, you can set the automatic update by clicking “Auto Update”.