The HDMI error on your Tcl Soundbar means the HDMI ARC connection between your soundbar and TV is not passing audio correctly. This is usually caused by a cabling, port, or settings issue that stops the ARC (Audio Return Channel) handshake from completing.

Error code HDMI
Meaning The soundbar cannot establish or maintain an HDMI ARC/eARC link with the connected TV
Severity Medium — sound is disrupted but the soundbar and TV usually still work independently
Time to fix 5–20 minutes
Tools needed HDMI cable (ARC/eARC certified), TV remote, soundbar remote

What the HDMI error means

HDMI ARC lets your TV send audio back to the soundbar through a single HDMI cable, so you don’t need a separate optical or aux connection. When the Tcl Soundbar shows an HDMI error, it means this two-way handshake has failed, so no sound is being passed from the TV to the soundbar. This is a common issue and is rarely caused by a hardware fault — most cases come down to the wrong HDMI port, an old cable, or ARC being switched off in the TV menu.

Common causes

  • The TV is connected to a standard HDMI port instead of the one labelled HDMI ARC or eARC
  • HDMI-CEC or ARC is turned off in the TV’s audio settings
  • An old or damaged HDMI cable that does not support ARC signalling
  • The soundbar or TV firmware is outdated and doesn’t handle the ARC handshake properly
  • A temporary glitch in the HDMI connection after a power cut or software update
  • The wrong audio output source is selected on the TV or soundbar

How to fix the HDMI error

  1. Check the HDMI port — Make sure the cable from the TV is plugged into the port marked “HDMI ARC” or “eARC” on both the TV and the soundbar, not a regular HDMI input.
  2. Swap the HDMI cable — Use a high-speed HDMI cable rated for ARC/eARC, ideally the one supplied with the soundbar, and replace it if it’s old or damaged.
  3. Enable ARC/CEC on the TV — Go into your TV’s sound settings and turn on HDMI-CEC (may be called Anynet+, Bravia Sync, or SimpLink) and ARC/eARC.
  4. Power cycle both devices — Turn off the TV and soundbar, unplug them from the mains for 30 seconds, then plug back in and power on the TV first, followed by the soundbar.
  5. Select the correct audio output — On the TV, set the speaker output to “External Speaker” or “ARC,” and on the soundbar confirm the input is set to TV/ARC.
  6. Update firmware — Check for and install any available software updates on both the TV and the Tcl Soundbar, as ARC bugs are often fixed in updates.

FAQ

Why does my Tcl Soundbar say HDMI ARC not working but the TV picture is fine?
ARC only carries audio, so the video feed can work perfectly while the audio handshake fails separately — it’s usually a settings or cabling issue rather than a broken port.

Do I need a special HDMI cable for ARC to work?
Yes, you need a high-speed HDMI cable that supports ARC or eARC; basic HDMI cables can sometimes fail to carry the audio return signal reliably.

Will a factory reset fix the HDMI error on my Tcl Soundbar?
It can help if a settings glitch is the cause, but try checking the port, cable, and TV ARC settings first, since a reset should be a last resort.

If HDMI issues persist, it’s worth checking whether your TV itself has related connectivity problems, such as those covered in Tcl Tv NW-2-5 Error Code: Causes and Fixes or Tcl Tv NW-2-7 Error Code: Causes and Fixes. Network-related errors like Tcl Tv NW-3-7 Error Code: Causes and Fixes and general Tcl Tv ERROR Error Code: Causes and Fixes can sometimes point to a wider software issue affecting HDMI handshakes too. If you’re troubleshooting a similar ARC fault on other equipment, the steps in Panasonic Blu-ray HDMI Error Code: Causes and Fixes follow the same basic logic.