LG TV Screen Flickering? 10 Easy Fixes

Quick Fix

LG TV screen flickering? Turn off Energy Saving: go to Settings > General > Energy Saving and set to Off. Also disable TruMotion: Settings > Picture > Picture Mode Settings > TruMotion > Off. If flickering persists, unplug TV for 60 seconds to reset, then check HDMI cables are firmly connected.

Why Is My LG TV Flickering?

LG TV flickering is caused by Energy Saving mode, TruMotion settings, loose HDMI cables, outdated firmware, backlight issues, or signal problems. Most flickering is fixed by adjusting picture settings rather than hardware repair.

Method 1: Disable Energy Saving

Energy Saving causes brightness fluctuation.

1. Press Settings on remote
2. Go to General > Energy Saving
3. Set to Off
4. This stops auto-brightness adjustments
5. Check if flickering stops

Method 2: Turn Off TruMotion

Motion smoothing causes flicker.

1. Go to Settings > Picture
2. Select Picture Mode Settings
3. Find TruMotion
4. Set to Off
5. Or try “Cinema Clear” setting

Method 3: Power Cycle the TV

Reset clears temporary glitches.

1. Turn off TV with remote
2. Unplug from wall outlet
3. Wait 60 seconds
4. Hold TV power button for 30 seconds (while unplugged)
5. Plug back in and turn on

Method 4: Check HDMI Connections

Loose cables cause flickering.

1. Unplug all HDMI cables
2. Inspect for damage or bent pins
3. Firmly reconnect each cable
4. Try different HDMI port on TV
5. Test with different HDMI cable

Method 5: Update TV Firmware

Software bugs cause display issues.

1. Go to Settings > General > About This TV
2. Select Check for Updates
3. Download and install if available
4. TV will restart after update
5. Test for flickering

Method 6: Adjust Picture Settings

Certain settings cause flicker.

1. Go to Settings > Picture
2. Try different Picture Mode (Standard, Cinema)
3. Disable Dynamic Contrast
4. Turn off Real Cinema
5. Disable Eye Comfort Mode

Method 7: Check Input Source

Source device may cause flicker.

1. Switch to different input (cable, streaming stick)
2. If only one input flickers, that device is the issue
3. Try TV’s built-in apps to test
4. Check source device’s output settings

Method 8: Disable HDMI-CEC

CEC can cause display conflicts.

1. Go to Settings > General
2. Find SIMPLINK (HDMI-CEC)
3. Turn it Off
4. Restart TV
5. Test for improvement

Method 9: Factory Reset TV

Clear all settings if nothing else works.

1. Go to Settings > General
2. Select Reset to Initial Settings
3. Enter PIN (default: 0000)
4. Confirm reset
5. Set up TV again

Method 10: Check for Hardware Issues

Backlight failure causes flickering.

• If flicker persists after all fixes, backlight may be failing
• Flickering in one area indicates LED strip issue
• Check warranty at lg.com/support
• Professional repair costs $100-300
• Consider age of TV vs repair cost

FAQ

Why does my LG TV flicker only on certain channels?

Channel-specific flickering indicates a broadcast or cable box issue, not the TV. Try the channel on a different TV or contact your cable provider. The signal may have interference or low quality.

Why does my LG OLED TV flicker?

OLED flickering is often caused by the Ambient Light Detection feature. Go to Settings > Picture > Energy Saving and disable all options. Also check that your HDMI cable supports your resolution (4K needs HDMI 2.0+).

Is screen flickering covered by LG warranty?

If flickering is due to hardware defect (backlight, panel), it’s typically covered under the 1-year standard warranty. Software-related flickering that’s fixed by settings changes is not a defect. Keep your receipt for warranty claims.