Sometimes, there will be no sound coming out of your LG TV in spite of not being on mute. This is one of the common issues faced by LG TV users from around the world. There might be various reasons for audio issues all of which can be fixed by following these troubleshooting methods.
Why There is No Sound on Your LG TV
Here are some reasons that might cause no audio issue on an LG TV.
- Temporary software bug
- Wrong sound settings
- Damaged HDMI cable
- Outdated firmware
- Audio issues due to an external speaker
- Attached streaming devices
How to Fix No Sound Issue of LG TV
Try these fixes if there is a distorted sound or no audio on LG TV.
Unplug your LG TV
Turn off and unplug your LG TV from the power socket and wait for 60 seconds. After that, plug your LG TV into the power output and test if the audio works.
Turn Up the Volume
One of the most basic and first things to check while having no audio issue on your TV is to check if the TV is on mute and the volume levels of your TV. You can use the LG ThinQ app, or physical volume buttons on the TV to increase the volume. If you still have an issue after turning up the volume, you need to check the Sound settings to find the cause.
Perform a Sound Test
You can check the sound of your LG TV, by performing a sound test from the settings. Based on your WebOS, the steps might differ
- Press the Settings button on your LG TV remote.
- Now, follow the steps based on your WebOS
- WebOS 4.5 and older: Click All Settings > Sound > Sound Test.
- WebOS 5.0: Click All Settings > Support > Additional Settings > Sound Test.
- WebOS 6.0: Click All Settings > Support > Quick Help > Check Items > Self-Diagnosis of TV Settings > Sound > No Sound.
The sound test will automatically set your volume to 20 automatically, if you can’t hear the audio, proceed to the next step.
Change LG TV Sound Settings
Some misconfiguration in Sound Settings can cause no audio issue on your LG TV. Change these settings on your LG TV Sound Settings. After changing each setting, test if the issue is fixed.
Turn Off Smart Sound Mode
 Click on the Settings button on the LG Remote.
 Select Smart Sound Mode and turn it Off
Change Sound Out
 In the Sound settings, click on Sound Out.
 Select Optical.
 Set the Digital Sound to PCM.
 Turn off the LG Sound Sync.
Turn Off Dolby Atmos
If you’re using the Optical Sound Out settings, turn off Dolby Atmos on LG TV. Doing this might fix the issue, if not move to the next method.
Switch to a Different Sound Out
Try all different Sound Out settings
- Internal TV speaker
- HDMI ARC
- Internal TV Speaker + Optical
If none of the setting changes fixes the issue, you can try the next fix.
Reset LG TV to Factory Settings
Resetting your LG TV will restore all the settings to system default which may help resolve issues like no sound and other issues.
 Go to Settings > All Settings > Support or General.
 Select Reset to Initial Settings.
 Select OK.
Now check whether the no-sound issue is fixed.
Update LG WebOS Firmware
Outdated firmware might also be the reason for bugs like no sound, so check for updates and update your LG Smart TV firmware to the latest version.
 Go to Settings > All Settings > Support.
 Select Software Update.
 Click on Check for Updates.
 If there are any pending updates click Download and Install.
 Once the download is complete, turn off the TV for 10 seconds then turn it on to install the update.
Check if the issue persists after updating to the latest firmware. If the issue is still present, try the next troubleshooting.
Check the Cable
Loose cabling and damaged cable will be responsible for no sound on the HDMI ARC of LG TV. Ensure to plug the cables properly into the respective port of the TV. It is recommended to use a branded cable which can last long.
Connect the Device to a Different Port
All modern LG TV has multiple HDMI ports. If you’re facing a no-sound issue on your LG TV, plug in the HDMI cable to a different HDMI port in the TV and check if the issue still persists.
Reset the A/V Settings
One another effective method to fix the no-sound issue is by resetting the audio/video settings.
 Click on the Mute button on your LG TV remote three times.
 In the popup, click Confirm to reset the audio/video settings.
Now, check if the no sound issue still exists on your LG Smart TV.
Check the Soundbar or External Speakers
If you have a soundbar or external speaker connected to your LG TV, check if the soundbar or external speakers are working properly. Check if the wires are connected properly. If your soundbar or external speaker is damaged, buy a new external speaker or a soundbar for your LG TV.
Check the Attached Streaming Devices
If you have attached streaming devices like Firestick, Google Chromecast, or gaming consoles like Xbox, or Playstation, check if the volume is on mute or low in those devices. Go to source settings and change the input on LG TV to HDMI or PCM based on what cable you’re using.
Contact LG Customer Support
If none of the fixes works for you, the last and final option is to contact LG customer service. Visit the LG Support page to find solutions regarding the audio issue on your LG TV. Hopefully, they will help you resolve or repair your LG TV and fix the no-sound issue on your LG TV.
Frequently Asked Questions
Unplug your TV cord from your power source. Leave the TV cord unplugged for 3 minutes. Plug the TV cord and turn on your LG TV. Check, if the issue is resolved.
If LG TV has sound but no picture, follow these steps to fix it.
 Check if your HDMI cable is properly plugged into the ports on both ends.
 Set your TV screen to the correct input.
 Try a different HDMI port.