After following all the above steps, but still, having the Amazon Fire TV Sound Problem. Do not worry if you check all the high prospects; then, it means your device does not contain any technical errors. It's maybe due to the fact that your HDMI Port is Compatible with Audio. For solving the error, you need to use an HDMI Port that Compatible to produce Audio. If you are a novice for these technical steps then dial 1-877-943-5444
for experts support.