
No sound from the soundbar when using eARC on Samsung TV

If you’re having issues connecting to the eARC format, or if you’re not receiving any sound when using eARC, there are a few things you can check. For example, make sure you are using an eARC-compatible HDMI cable, such as an HEAC or HEC cable.
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Disconnect all HDMI devices.
To make sure that the setup is configured correctly, it's easiest to start from scratch.
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Turn on only the TV and soundbar.
Any other HDMI devices can be left alone for now. After the issue is resolved, you can reconnect and turn on any other devices.
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Connect the TV and soundbar's ARC ports with an eARC-compatible HDMI cable.
After a moment, the TV will autodetect the soundbar. Examples of eARC-compatible cables include an HEAC or HEC cable. Make sure you use a cable you know is functional and in good condition.
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Once the soundbar is detected, enable the proper settings on the TV.
On the TV, navigate to Sound > Expert Settings, and enable both HDMI eARC Mode and Dolby Atmos compatibility.
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Update the firmware on your TV and soundbar.
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Request service.
It is exceptionally rare that this issue cannot be resolved through the previous steps. However, if you're certain that some kind of defect is occurring, visit our Support Center to request service.
Contact Samsung Support
