What if you encounter Fire Stick no sound? Sometimes, rather than the Firestick itself being the issue, it’s the app you’re using that can be causing sound issues on your device.
Firstly, try watching media on a few different apps, to see how many of them have Fire TV sound issues.
If all of them have sound issues, it won’t be the fault of a particular one. But if one, or just a few, have sound issues, try uninstalling these apps, and then re-installing them.