LG TV Showing White Dots: Causes and Solutions

If you notice small white dots on your LG TV screen, you’re not alone. These dots can be distracting and ruin your viewing experience. This guide explains why white dots appear, how to fix them, and how to prevent them. We provide step-by-step solutions for both beginners and tech-savvy users. Whether you want to try simple troubleshooting or a hands-on repair, we’ve got you covered.

What Causes White Dots on LG TVs?

White dots on LG TVs typically result from two issues: backlight reflector problems or pixel defects. Understanding the cause helps you choose the right fix.

Backlight Reflector Issues

Most white dots are caused by problems with the TV’s backlight system. LG TVs use LED backlights, where small reflector lenses diffuse light evenly across the screen. These lenses can loosen or fall off due to poor adhesive, physical shocks (like moving the TV), or heat exposure. When a lens falls, the LED light shines directly onto the screen, creating a bright white spot. This issue is common in LG models like the 42LB650V and 60” LA6200.

Pixel Defects

Less often, white dots are caused by pixel defects. Pixels are tiny dots that form the TV’s image. A stuck or dead pixel may appear as a small white dot, especially on dark backgrounds. Unlike backlight issues, pixel defects are usually single points, not larger spots. LG’s official support page suggests pixel defects can sometimes be fixed with software.

Symptoms of White Dots on LG TVs

White dots appear as bright, circular spots on the screen, most visible during dark scenes. They may start as one or two dots and increase over time. Unlike image artifacts, these dots stay in place regardless of the content displayed. Users on forums like OnlyTech report dots multiplying if not addressed.

Software Fixes for White Dots

Software fixes are a good starting point, especially for pixel-related issues. These steps are simple and safe but may not resolve backlight problems.

Power Cycle the TV

A power cycle resets the TV’s electronics. Follow these steps:

1. Unplug the TV from the power outlet.
2. Press and hold the power button on the TV for 15 seconds.
3. Wait 30 minutes.
4. Plug the TV back in and turn it on.

This can fix minor software glitches.

Check HDMI Connections

Loose or dirty HDMI cables can cause display issues. Try these steps:

1. Unplug all HDMI cables.
2. Clean the ports with a dry cloth.
3. Replug the cables securely.
4. Test different HDMI ports or remove external devices.

This ensures the issue isn’t caused by faulty connections.

Adjust Picture Settings

Adjusting settings may reduce the visibility of white dots. Go to:

1. Settings > All Settings > Picture.
2. Adjust brightness, contrast, or backlight settings.
3. Turn off Energy Saving Mode (Settings > All Settings > Support > Energy Saving).

This can help with pixel issues.

Perform Picture Self-Test

LG TVs often have a self-diagnosis feature. To use it:

1. Press the Settings button on your remote.
2. Go to All Settings > Support > Screen Self-diagnosis.
3. Follow the on-screen instructions.

This test identifies whether the issue is with the screen or input signal.

Update Firmware

Outdated firmware can cause display problems. Check for updates:

1. Go to Settings > All Settings > Support > Software Update.
2. Enable auto-updates or follow on-screen instructions to install updates.

You can also download firmware from LG TV Firmware Download.

Factory Reset the TV

A factory reset restores default settings but erases customizations. To reset:

1. Press the Home button on your remote.
2. Go to All Settings > General > System > Reset to initial settings.
3. Enter the PIN (default is 0000 or 1234).

This is a last resort, as it may not fix backlight issues.

Related Article: For other LG TV issues, check out How to Fix LG TV Sound Not Working.

Hardware Fix: Replacing Fallen Reflectors

If software fixes fail, the issue is likely the backlight reflectors. Fixing this requires opening the TV, which can be challenging. Proceed only if you’re comfortable with DIY repairs.

Tools Needed

• Phillips and flathead screwdrivers
• Clear epoxy or transparent adhesive (not superglue)
• Toothpicks or small tools for applying glue
• Clean cloth or towel
• Gloves (optional, to avoid fingerprints)

Step-by-Step Guide

1. Unplug the TV: Disconnect the TV from the power source for safety.
2. Remove the back panel: Place the TV face down on a soft surface. Remove screws and lift off the back panel carefully.
3. Locate the LED strips: Find the LED strips at the bottom or edges of the TV. Look for loose or fallen reflector lenses.
4. Reattach the reflectors: Apply a small amount of clear epoxy to the reflector’s base. Press it back over the LED and hold until set. Avoid excess glue, which can affect light diffusion.
5. Check all reflectors: Inspect all lenses and secure any loose ones. If reflectors are missing, gently shake the TV to locate them.
6. Reassemble the TV: Replace the back panel and secure it with screws.
7. Test the TV: Plug in the TV and check if the dots are gone.

Safety Precautions

• Handle TV components gently to avoid damaging the screen.
• Work in a clean, dust-free area to prevent debris inside the TV.
• Wear gloves to avoid fingerprints on internal parts.
• If unsure, seek professional help to avoid costly damage.

Opening the TV may void the warranty. Check your warranty status at LG’s warranty page before proceeding.

Related Article: Learn how to adjust your TV’s display with How to Adjust Brightness on LG TV.

Professional Repair Options

If DIY repairs seem risky, contact LG Support or a local repair shop. Costs vary but typically range from $100 to $300, based on user reports on OnlyTech. For example, one user paid $3,200 PKR (about $115 USD) for a glue fix, while reflector replacement cost $9,500 PKR (about $340 USD). Authorized repair centers ensure safety but may take longer.

Preventing White Dots on LG TVs

To reduce the risk of white dots:

• Handle the TV carefully during transport to avoid shocks.
• Avoid extreme temperatures or humidity, which can loosen adhesives.
• Place the TV on a stable surface to prevent vibrations.

These steps can extend your TV’s lifespan and maintain picture quality.

Related Article: For more LG TV maintenance tips, see How to Change LG TV Screensaver.

Conclusion

White dots on LG TVs are often caused by loose backlight reflectors, though pixel defects are a possibility. Software fixes like power cycling or firmware updates are worth trying first. If they don’t work, reattaching reflectors is an effective DIY solution, but it requires care. Professional repairs are a safer option if you’re unsure. By following this guide, you can restore your TV’s picture quality and enjoy uninterrupted viewing.

Frequently Asked Questions