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Factory reset and self diagnosis tools on your Samsung TV

View of a living room with the TV's back showing

When you are having a problem with your TV, you may want to just do a factory reset and start over. The good news is that even though this is possible, it may not be necessary. Your TV also has several self diagnosis tools built-in that can help you solve any problems you are experiencing with signal, network, picture, or sound.

Run a network Status Test

If your TV does not connect to the internet, perform a network test to see what the problem is.

Navigate to Settings > General > Network > Network Status. The network status test will finish and show the status of your network connection.

  1. When there is an X between the TV and the router, this means the issue is with either the TV or the home network.

  2. When there is an X between the the router and the Earth (internet), this means there is an issue between your home network and the ISP.

Network Status Test in the TV's Self Diagnosis menu

For more detailed information check out our guide, TV does not connect to the internet.

Test your connection to Smart Hub

The Smart Hub Connection Test diagnoses the problem by checking the internet connection, your ISP, the Samsung server, and the Apps service.

Navigate to Settings > Support, and then select Self Diagnosis > Start Smart Hub Connection Test. After your Smart Hub Connection Test is complete, select Close to return to the main menu.

Note: If any problems are detected, please follow the on-screen instructions.

Smart Hub Connection Test in the Self Diagnosis menu

Factory reset Smart Hub

When you perform a reset, all Smart Hub settings will revert to their factory defaults and all information related to Samsung accounts, linked service accounts, Smart Hub service agreements, and Smart Hub apps will be deleted. Once you're ready, follow these steps:

Navigate to Settings > Support. Select Self Diagnosis > Reset Smart Hub, and then enter your PIN. After the reset is complete, select OK.

Reset Smart Hub in the Self Diagnosis menu

Note: The default PIN is 0000. You can set the PIN by navigating to Settings > General > System Manager > Change PIN.

Diagnose picture issues using the picture test

Use the Picture Test to determine if the problem is caused by the TV. The Picture Test displays a high definition photo that you can examine for flaws or faults. When the TV has trouble with the picture, these steps may help resolve the problem.

First, navigate to Settings > Support > Self Diagnosis. Then, select Start Picture Test. Look at the screen for any problems, and follow the on-screen instructions to complete the picture test.

Run a Picture Test in the Self Diagnosis menu

Note: If the picture test does not appear or you see a problem with the photo, the TV may have a problem. Contact Samsung Support for assistance.

If the test photo is displayed properly, there may be a problem with an external connected device. Check the connections, the signal strength, or refer to the external device's user manual.

Factory reset the picture settings

If you'd like to start fresh with your picture settings, you can just reset them. Using your remote, navigate to and select Settings > Picture > Expert Settings > Reset Picture, and then select Yes to confirm.

Note: If these steps do not match your TV, visit the Download Center to find your TV's user manual.

Diagnose sound issues using the Sound Test

Press the Home button on your remote. Navigate to Settings > Support, and then select Self Diagnosis > Start Sound Test. The Sound Test will begin. If you still hear a problem in the Sound Test, select Yes. Otherwise, select No. If there is a problem, you will be asked to contact Samsung Support. Be ready to provide the on-screen information to the support agent.

The Sound Test plays a melody to help determine if there is an issue with the TV speakers.

Run a Sound Test in the Self Diagnosis menu

If the melody plays without issue, there may be an issue with a connected external device. Check the connections or refer to the external device's user manual.

Reset the sound settings

If you'd like to start fresh with your sound settings, you can just reset them. Using your remote, navigate to and select Settings > Sound > Expert Settings > Reset Sound, and then select Yes to confirm.

Note: If these steps do not match your TV, visit the Download Center to find your TV's user manual.

Check the broadcast signal Information for your area

If your TV is connected to an over-the-air antenna, you can select Signal Information to adjust the antenna for increased signal strength and improved HD channel reception. Navigate to Settings > Support. Select Self Diagnosis, and then select Signal Information. After you view the information, select Close to return to the main menu.

Factory reset the TV

Want a complete do-over? You can restore all TV settings (excluding the network settings) to factory defaults.

Navigate to Settings and then 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. If these steps don't match your TV, navigate to Settings > Support > Self Diagnosis, and Reset will be located in that menu. You can also check the user manual for exact instructions for your TV model. 

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