We have a Voice Remote RC399, and are on software version 10.0.0-build 4209-04. The remote will currently control power but not sound. It controlled both before. Our tv model is a Samsung UN46EH5300F, made July 2012. When trying to set up the remote after doing updates and resets, the word Samsung is not being recognized as a valid tv brand. We do not have an AVR. Any help would be appreciated.