Hello I open this thread again because 4K does not work properly. The picture and sound disappear a few seconds every two to three minutes. In 1920x1080 everything works. I thought I had solved the problem after changing the HDMI cable with a cable certified 4K, but there was something else. I do not know if it comes from the TV or if it is the Minix 8. The TV is a sSamsung 48UH7500. I have no other sources for testing 4K. Do you also have problems, an update is it planned. Thank you for an answer.