It's the same for me. The fans are quite loud or too loud. So at a distance of 3 metres, they are clearly audible when the film gets a little quieter.

What also surprises me is that I think I bought the product at the beginning of December. There have been no software updates since then.

I forgot to mention that you also have to change the Xiaomi user interface. Not only on the Source Hdmi 1-3.

Unfortunately no.