Upgraded to v360 on Friday, every time I open Prime Video everything is okay until I press play video, then a black screen white flash then nothing on the v360 until I unplug hdmi and plug it back in I then get message try a different cable I press o...

Over the last few weeks the sound level on the ultra hd channel has dropped considerably, I mean a lot, it's so low I have to turn the sound up high. I have tried Dolby settings, and Dolby to PCM no change. All other channels are fine, has any one el...