How to Use Self Diagnosis on a Samsung TV

Last Update date : 2026-07-01
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Discover how to use Self Diagnosis tools on Samsung TVs and Smart Monitors to troubleshoot power, software, remote control, HDMI, Wi-Fi, Bluetooth, IoT, sensors, and more.

Samsung TVs and Smart Monitors feature built-in Self Diagnosis tools designed to help you identify and resolve common issues quickly. These tools cover power, software, connectivity, sensors, and more, making troubleshooting easier and more efficient.

1. What is Self Diagnosis on Samsung TVs and Smart Monitors?

Self Diagnosis is a suite of built-in diagnostic tools available on Samsung TVs and Smart Monitors from 2022 and later models. These tools allow users to automatically check various components and functions of their devices, such as power, software, remote control, HDMI, Wi-Fi, Bluetooth, IoT modules, sensors, and more.

2. How to Access Self Diagnosis Tools

  1. Turn on your Samsung TV or Smart Monitor.
  2. Press the Home button on your remote control.
  3. Navigate to Settings or Support.
  4. Select Self Diagnosis or Diagnostics.
  5. Choose the test you want to run and follow the on-screen instructions.

3. Available Self Diagnosis Tests

- Power: Check the power history and related information.

- SW Version Information: View the current software version and the latest firmware update progress. You can select Update Now to update to the latest available version.

- Video Test: Check the screen for any issues, and use the on-screen instructions to complete the test. This helps determine if there are any issues with the video quality.

- Picture Test: Check the screen for any issues, and use the on-screen instructions to complete the test. This helps determine if there are any issues with the picture quality.

- Sound Test: Listen to the sound to check for issues, then follow the on-screen instructions to complete the test. This helps determine if there are any issues with the sound quality.

- Remote Control: This test inspects the physical keys of the remote control for any malfunctions. If a failure occurs, the remote control will display the keys that did not receive the correct input.

- HDMI Troubleshooting: Check whether the HDMI cable is properly connected to the HDMI port. You will need to select the HDMI port you wish to test.

- HDMI Signal: Check the signal, signal history, and connection of an external device.

- HDMI-CEC Check: Check for HDMI CEC lines that are operating abnormally, as this may affect the operation between the TV and other devices, such as sound bars.

- Smart Hub Connection Test: Check the Smart Hub connection.

- Wi-Fi: Scan for available Wi-Fi access points.

- Bluetooth: Check the status of the Bluetooth module.

- IoT Module: Check the status of the IoT module.

- Accelerator Sensor: Check the status of the Accelerometer Sensor.

- Light Sensor: Check the status of the Light Sensor.

- Mic Test: Check the status of the microphone module.

- Broadcast Signal: Check the current broadcast signal.

- Reset Smart Hub: Follow the on-screen instructions to perform a Smart Hub factory reset, which will reset all settings, downloaded apps, and accounts. You will need to enter your PIN (0000 is the default PIN) to complete the reset.

4. Supported Samsung Devices

Self Diagnosis tools are supported on Samsung TVs and Smart Monitors released in 2022 and later. This includes models from the Galaxy series, QLED, Neo QLED, and Micro LED families.

5. Additional Things to Check

If a test identifies an issue, ensure you have your TV's model code, software version, and serial number ready when contacting Samsung support. These details help technicians provide faster and more accurate assistance.

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