No sound from your TV is frustrating but usually simple to fix. Before assuming the worst, work through these common causes — most can be solved in under two minutes.
Fix 1: Check the Mute Button and Volume Level
It sounds obvious, but check your remote: press the mute button once to toggle it off. Make sure volume isn't at zero. Also check if a connected device (cable box, Fire Stick) has its own volume.
Fix 2: Check the Audio Output Setting
Your TV may be set to output audio to a device that isn't connected. Go to TV Settings > Sound > Audio Output and make sure it's set to 'TV Speakers' or the correct output device.
Fix 3: Unplug and Replug HDMI Cables
A loose HDMI connection can carry video but drop audio. Unplug and firmly reseat all HDMI cables. Try a different HDMI port on the TV.
Fix 4: Restart the TV
Hold the power button on the TV itself (not the remote) for 10 seconds, then unplug from the wall for 30 seconds. This forces a full power cycle and clears audio software glitches.
Fix 5: Check Headphone Jack
If something is plugged into the headphone jack (even partially), the TV redirects all audio there. Unplug anything from the audio jack.
Fix 6: Update TV Firmware
A firmware bug can kill sound after an automatic update. Go to Settings > Support > Software Update and install any available update.
Fix 7: Factory Reset the TV
If nothing works, a factory reset clears any corrupted settings. Go to Settings > General > Reset. You'll need to set up your TV again but all settings will be wiped clean.
Conclusion
TV sound problems are almost always a settings issue — not a hardware failure. Check mute, audio output, and HDMI connections first. A full power cycle fixes most software-related audio bugs.