I remember sitting down to watch my favorite show when I noticed my LG TV had no sound. The screen was fine, but there was silence.
I checked the volume, switched inputs, and even restarted the TV—but still nothing. I’ve faced this before, so I knew where to start. In this guide, I’ll walk you through the steps I use to fix sound issues on LG TVs.
Whether the problem is with HDMI, apps, or a recent update, I’ve got you covered. Everything here is simple, tested, and beginner-friendly. If your LG TV is quiet, let’s fix it together.
Table of Contents
My Friend Jack Lost All Audio — And I Fixed It
His LG TV was silent, and nothing seemed to work.
He’d tried everything except the actual fix.
Jack called me frustrated — his LG TV had no sound but wasn’t muted. He’d already restarted the TV, swapped HDMI cables, and even switched inputs. Still, nothing. I dropped by, checked the HDMI settings, then reset the audio output from the menu. Finally, I walked him through a quick firmware update. Within minutes, the sound came back—Netflix was working perfectly. Jack smiled in disbelief. Since then, I’ve been his go-to “TV guy.”
Here’s What I Check First When There’s No LG TV Sound
Sometimes the simplest checks fix the problem fast.
Here’s what I always try first when a TV goes silent.
- Check volume level: Make sure it isn’t muted or too low
- Check output setting: Avoid selecting ‘Audio Out’ if nothing’s connected
- Confirm input source: Match the source to the correct HDMI input
- Do a soft reboot: Unplug the TV from power for 60 seconds
- Try another HDMI port: The current port might be damaged or inactive
If the LG TV has no sound but isn’t muted, one of these steps usually fixes it.
How I Fix LG TV Sound Not Working with HDMI
HDMI issues are common, but I’ve found a pattern that works.
These steps help me bring the sound back in minutes.
- Open Settings → Sound → Sound Out: This is the first place I check
- Select ‘HDMI ARC’: If using a soundbar or home theater system
- Switch to ‘TV Speaker’: Helps test if the issue is with the external device
- Use a different HDMI cable: Faulty cables cause more issues than expected
- Test another HDMI port: Sometimes HDMI 1 fails while others work
- Check device settings: Make sure the connected device is set to HDMI audio
- Reset AV settings: Go to Settings → All Settings → Sound → Reset
This usually solves the problem unless there’s a hardware issue. I’ve helped many friends this way.
Solving LG TV No Sound on Netflix and Other Apps
App sound issues need a few extra steps.
Here’s what I do when apps stay silent.
- Reboot the TV: Power off and unplug it for 60 seconds
- Check volume inside the app: Some apps have their own settings
- Set Digital Sound Out to Auto: Go to Settings → All Settings → Sound
- Clear app cache or update: Sometimes this brings the sound back
- Reinstall the Netflix app: Use the LG Content Store to reinstall it
- Switch ‘Bitstream’ to ‘PCM’: Found under the sound settings
If my LG TV has no sound on apps, a firmware update or factory reset usually does the trick.
What I Do When LG TV Has No Sound After an Update
Updates can quietly change the sound settings.
Here’s how I fix it when sound disappears after an update.
- Recheck ‘Sound Out’ setting: Updates often reset this to default
- Enable HDMI ARC or Optical Out again: These may be turned off
- Manually restart the TV: Unplug it instead of just using the remote
- Turn Simplink (HDMI-CEC) off and back on: This refreshes the connection
- Run the built-in speaker test: Go to Settings → Sound → Sound Test
If my LG TV has no sound after update, I usually reset everything to factory settings. But I always back up Wi-Fi and app logins before doing that.
My HDMI Port Had No Sound — Until I Tried This
I’ve seen HDMI 1 fail while others work fine.
Here’s what I do when one HDMI port goes silent.
- Switch to HDMI 2 or 3: The port itself may be the problem
- Check connected device: Make sure it’s sending audio through HDMI
- Set audio to HDMI ARC: Go to Settings → Sound → Sound Out
- Toggle Simplink off and on: Sometimes it needs a quick reset
- Update TV firmware: This can fix software bugs with specific ports
If HDMI 1 has no sound, I use a different port. It’s often a fast fix.
What If My LG TV Has No Audio Output Jack?
New LG TVs don’t always include the old audio ports.
But I’ve found simple workarounds that keep sound flowing.
- Use Optical Digital Out (TOSLINK): Works great with most soundbars
- Use HDMI ARC or eARC: Best for newer audio setups
- Connect Bluetooth speakers: Go to Settings → Sound → Bluetooth
If my LG TV has no audio output jack, I go with HDMI ARC. It gives clear sound without needing extra cables. For older gear, I sometimes use an HDMI audio extractor.