How to Fix a Samsung TV Flickering Screen

If your Samsung TV screen is flickering, this tutorial provides multiple methods to help you diagnose and fix the issue. Follow the step-by-step instructions for each method to restore stable picture quality.

Method 1. Adjust Picture Settings and Energy-Saving Features

This is most likely the best option to fix Samsung TV flickering issue. Incorrect picture settings or enabled energy-saving features can sometimes cause flickering effects.

Access Picture Settings: Navigate to the ‘Picture’ menu on your TV using the remote.
Disable Energy Saving Mode: Turn off any power-saving features or dynamic contrast settings that could affect the display.
Reset Picture Mode: Change the picture mode (e.g., Standard, Movie) to see if flickering stops.
Fine-Tune Brightness/Backlight: Adjust brightness and backlight levels to ensure they are not set too low or too high, as this may cause flickering. In our experience, making the screen darker tend to stop the flickering.

Method 2. Check HDMI and External Cable Connections

Loose or damaged cables can cause screen flickering by interrupting the signal flow.

Inspect All Cables: Examine HDMI, component, and composite cables for any visible signs of wear or damage.
Secure Connections: Ensure all cables are firmly connected to both the TV and any external devices.
Swap Cables: Replace the cables with known working ones to rule out a faulty cable.
Change HDMI Ports: Try connecting the HDMI cable to a different port on the TV to see if the issue persists.

Method 3. Verify the Power Supply and Electrical Connections

Fluctuations in power supply or improper electrical connections may lead to flickering issues.

Examine the Power Cord: Ensure that the power cord is securely plugged into both the TV and the wall outlet.
Test the Outlet: Use another device to check if the outlet is providing consistent power.
Avoid Power Strips: Plug the TV directly into the wall outlet to prevent power fluctuations caused by overloaded power strips.
Check for Voltage Stability: If possible, use a voltage stabilizer or surge protector to maintain a steady power supply.

Method 4. Perform a Power Cycle

Power cycling helps reset the TV’s internal components and can often resolve temporary glitches like flickering.

Turn Off the TV: Use the remote or the TV’s power button to switch it off.
Unplug the TV: Disconnect the TV from the power outlet and wait for at least 60 seconds.
Discharge Residual Power: Press and hold the TV’s power button for 10–15 seconds while unplugged.
Reconnect and Restart: Plug the TV back in and turn it on to check if the flickering has stopped.

Method 5. Update the TV’s Firmware or Software

Outdated firmware or software can cause compatibility issues resulting in screen flickering.

Access the Settings Menu: Navigate to the ‘Support’ or ‘Software Update’ section on your TV.
Check for Updates: Select the option to look for firmware or software updates.
Install the Update: Follow on-screen instructions to download and install any available updates.
Restart the TV: Once the update is complete, restart the TV to see if the issue is resolved.

Method 6. Reset the TV to Factory Settings

A factory reset can eliminate persistent software glitches that might be causing the flickering.

Enter the Settings Menu: Navigate to the ‘General’ or ‘Support’ section of your TV’s menu.
Find the Reset Option: Look for the ‘Reset’ or ‘Factory Reset’ setting.
Input the Security Code: Enter the default security code (commonly “0000”) or your personalized code if prompted.
Confirm the Reset: Follow the on-screen instructions to complete the reset process and wait for the TV to reboot.

Method 7. Check for Signal Interference or Connected Device Issues

Interference from connected devices or poor signal quality can cause flickering on your TV screen.

Disconnect External Devices: Temporarily disconnect all external devices (cable box, streaming devices, etc.) to isolate the issue.
Test with a Different Source: Change the input source to see if the flickering is specific to one device.
Reduce Wireless Interference: Move any wireless devices (such as routers or cordless phones) away from the TV to minimize interference.
Verify Signal Quality: If using a cable or antenna, ensure the signal is strong and stable; consider a signal booster if necessary.

Method 8. Contact Samsung Support or a Professional Technician

If all troubleshooting methods fail, seeking professional assistance can help diagnose deeper hardware issues.

Gather Necessary Information: Note your TV model, firmware version, and a detailed description of the flickering issue.
Visit the Samsung Support Website: Look for troubleshooting guides, warranty information, and contact details on Samsung’s official support page.
Call Customer Service: Contact Samsung customer support for further assistance or to schedule a service appointment.
Follow Professional Recommendations: Adhere to the advice or repair instructions provided by the support team or technician for resolution.