so I tried everything you said. Some o f the steps I already did before you told me. I updated the software I have now the newest 04.11.18. I made the update using its own software.
I factory reseted a few times, still doesn`t work. I would have thought the same as you said that is something wrong with the mainboard, but when I choose the initialization of app form its menu my laptop`s screen goes dark and then for 2 seconds the image of the laptop moves on to the TV and then goes back and says "No signal for curent input device. Check status of external equipment. Try other available inputs." Basicaly that tells me that the HDMI`s are working properly but its a problem of compatibility.
What do you say I should try ?