Samsung one connect box reset button

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My main TV is a Samsung QLED, which I use to play games on my Xbox and watch all of the top-tier content available on streaming platforms.

I had been using the TV for about a year now, but when I turned it on yesterday, it showed me a black screen instead of the Tizen OS home screen.

Nothing I did with the remote seemed to do anything, and neither did any voice commands work nor my universal remote.

I immediately went online to find out why this happened because I knew the internet had a lot of information that could help.

After several hours of reading through Samsung’s support pages and many technical articles from other sources, I felt like I knew enough to tackle the issue, which I did effortlessly, and I got the TV fixed in less than an hour.

By the time you finish reading this article, I hope to impart this knowledge to you so that you’ll also be able to fix your Samsung TV’s black screen in minutes!

To fix a Samsung TV that shows a black screen, check if you’ve set the TV to the right input. Check your input devices as well for issues.

Continue reading to find out how to run a test on your HDMI cable with the TV and what you can do if you can’t use the TV’s user interface to fix the issue.

Set The TV To The Correct Input

Samsung one connect box reset button

If you’re getting a black screen after switching inputs on your TV, make sure you’re switching to the right input, which is the one that has your input device, like a game console, connected.

Check the back of the TV to see what input port you’ve connected your device to, and use the input key on the Samsung remote to switch to that input.

Make sure that the audio system is also connected properly to the eARC or Digital Audio input for sound to be played as intended.

Unplug and reconnect the cables if no picture appears even after switching to the right input; the connector needs to stay as flush as possible in the port for the TV to detect the device.

Check Cables

Some Samsung TVs allow you to test the HDMI cables connected to your TV to make sure they are compatible and work well with your TV.

To run the HDMI test:

  1. Set the TV’s input to the correct HDMI input.
  2. Launch Settings.
  3. Go to Support > Device care > Self Diagnosis.
  4. Then select Signal Information > HDMI Cable Test.
  5. Start the test.

The test will tell you at the end if you need to replace your cable, so do so by getting a new HDMI cable.

I would recommend an HDMI cable from Belkin, which supports HDMI 2.1.

The new HDMI standard supports 4K at 120Hz input, which can come in handy if you own or are planning to own a new PS5 or Xbox Series X|S.

Use Other Input Devices

Samsung one connect box reset button

Sometimes the issue might be with the input device you have connected, so change to another input device to make sure that it was the case.

If you can see the TV’s interface, but only the input device is showing you a black screen, your TV might be fine and working as it should.

Check with the other devices you own to make sure of this fact.

Check The One Connect Box

Some Samsung TVs, like the Frame Series, use an external box to connect your input devices like a console or a speaker system, called a One Connect Box.

This lessens the clutter around the TV, lets it sit flush and clean on any wall, and makes cable management even easier.

The One Connect Box connects to the TV with a single cable that carries all the data and power connected to the box.

Make sure this cable is connected correctly to your TV and the One Connect Box and is not loose or otherwise bent or physically damaged.

You can replace the cable if it seems to be damaged in any way, and I suggest picking up the replacement cable from Samsung itself since no other reliable brand makes these cables.

Restart The TV

Samsung one connect box reset button

If the TV remains black after trying all of the methods I’ve talked about, you can try soft resetting your TV, which is known to solve most issues with Samsung TVs.

To do a soft reset, all you have to do is power cycle or restart your Samsung TV a few times, and it won’t take less than a few minutes.

Follow the steps below to do so:

  1. Turn the TV off with the remote.
  2. Switch off the power to the TV and unplug it.
  3. Wait at least 60 seconds before plugging the TV back in.
  4. Switch the TV back on.

When the TV turns on, check again for the black screen issue you encountered earlier and restart a couple more times if the first go didn’t seem to work.

Reset The TV

When the TV stays black even after restarting it, the next option would be to factory reset your Samsung TV so that you can reset its system back to how it was when it rolled out from the factory.

Doing so would remove any personal data on the TV, log you out of all the apps you have on the TV and uninstall all apps you had installed after you set up the TV.

To factory reset your Samsung TV:

  1. Press the Menu key on the remote.
  2. Go to Support > Self-diagnosis.
  3. Select Reset and enter the PIN. It is 0000 by default if you haven’t set a PIN.
  4. Confirm the prompt that appears.

After performing the factory reset, check if you resolved the TV’s black screen issue.

Contact Samsung

Samsung one connect box reset button

If none of these troubleshooting steps works out for any reason, calling Samsung support is the right choice.

They’ll be able to send a technician to better diagnose your TV based on what model you own.

If it is under warranty, you’ll be able to claim a free service from customer service.

Final Thoughts

Try tweaking the picture settings of the Samsung TV if you can access the user interface.

Sometimes an incorrectly configured screen can be too dim to even see in a well-lit room.

Some of the fixes that I had talked about here can only work if you have access to the user interface, and if you don’t see anything on your TV or can’t do anything with the remote, it is better just to contact Samsung.

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Frequently Asked Questions

Is there a reset button on a Samsung TV?

There isn’t a physical reset button on your Samsung TV for most models, and you’ll need to go to the settings app on the TV to do so.

Once you initiate the reset, enter the code to begin this irreversible process.

How do I reboot my Samsung Smart TV without the remote?

To reboot your Samsung Smart TV without the remote, use the keys on the body of the TV to do so.

Otherwise, you can use a voice command to turn the TV off.

Does a factory reset delete everything on a Samsung TV?

A factory reset will remove any data on the TV and sign you out of all apps’ accounts.

All the apps that you have installed after getting the TV would also be removed, but nothing else will be deleted during the reset.

Why won’t my Samsung TV turn on, but the red light is on?

Your Samsung TV flashing red would mean an issue with the power that the TV is getting.

It can be attributed to a faulty power supply or your power connection, so check if your home is receiving adequate power or contact Samsung to look at the TV.

How do I reset my Samsung TV to One Connect?

Factory reset the TV Open Settings, and then select General. Select Reset, enter your PIN (0000 is the default), and then select Reset. To complete the reset, select OK. Your TV will restart automatically.

How do I know if my One Connect box is working?

To check whether the One Connect box is receiving power, you can take a look at the Optical cable port. There's a red LED behind the port that will light up when the One Connect box is powered.

Can a One Connect box be repaired?

Please note: You must ship both your Main Board and the One Connect Box to properly diagnose and repair your failed parts. Please message us before placing an order if you have any questions. ​1 year warranty on repair! This is a repair service, you must ship us your module(s) for repair!

How do you do a hard reset on a Samsung TV?

1 Factory Reset.
Power on your TV..
Press the Menu button..
Select Support, then Enter..
Choose Self Diagnosis, then Enter..
Select Reset, then Enter..
Enter your Security PIN. ... .
The factory reset screen will show a warning message. ... .
During the process, TV may turn off and on and will display the Setup screen..