Just purchased the HW-A50C soundbar and cannot get the volume up/down button to work. TV (Samsung) only has an HDMI 1 AND 2...both "IN"s. Tried both to soundbar, and even tried optical cable and still no up/down volume control....it just sits at 20 or mutes. Volume control won't even work when streaming sound from a phone via bluetooth. Returned the first soundbar thinking it was a remote issue but now the second one is doing the exact same thing. About to give up on this soundbar indefinitely unless someone has some suggestions. I did check for a tv update and it says it is all up to date. Not sure what else to do. This is extremely frustrating.
Thank you for this information! This forum is for support of US products and customers. As your product is a non-US model and support for these models is very limited, please seek a support team for your area. You can do so by using this link: https://www.samsung.com/us/common/visitlocationsite.html Thanks!