Picture break up and then no signal when first turned on.
When the V6 Box is first turned on in morning we get picture break up, green colours and then no signal. Need to turn the box on and off several times before we get a signal back. Happens most mornings when first turn on after being on standby overnight.
When the V6 Box is turned on we get no sound. Even turning the box on and off doesn't fix the problem. Need to either do a power cycle or do a Reset via Setup to get the sound to work. This happens most days when turning the box back on after being on standby overnight.
I had problems with no sound earlier this year. I got it all working again by doing some spring cleaning. My cabling looked like spaghetti junction due to all of my equipment. I disconnected everything form the mains and removed all HDMI, ethernet cables from everything, Nintendo Switch, X96 box, Dab radio, Xbox etc. I then tidied them all up, and made sure they had no kinks in them, then reconnected everything and hey presto, my sound returned. I hope this works for you.