SamyGO

Good thing it's still under warranty and they changed the board. Now the problem is terrestrial / cable channels have low picture quality and only hissing sound. No audible dialog or wahtsoever.

Only the power menu works. When I press it twice it appears, but I can't select sources nor summon the samsung hub. I can turn off the TV through it though.

I also tried pressing an holding the exit button but it didn't reset.

In service mode I tried switching regions for dtv after restarting the TV there is no response. No smarthub or Menu. Samsung Logo still appears though, but after that, only blank screen.