I have a problem on screen. It appears white dots on black scenes. When there is too much black on the movie/screen, white dots appears.
The dots are the same as https://www.reddit.com/r/AndroidTV/comments/98euap/are_these_white_dots_normal_for_mi_box/
But, when I turn/littlemove câble HDMI or Dcpower it diseapear or enhance it.
When it diseapear, when a too much black scene appear it comes up again.
I have tried différents cables. It the same.
I have tried to watch film dirrectly on TV. No white dots.
So i don’t know if it is hardware or software problèmes, but it’s not câble or TV.
Is it heat problem ? HDMI port problem ? Coreelec problem ?
My box is alfawise s912.
Sorry for my bad english, i’m french… (Tour Eiffel, Paris…)