I have a Mi box S (or mi box 4k in other regions), and all features seem to work sometimes and not other times. I connected a speaker to the tv, and I could control volume with android tvs volume control - next time it did nothing and even muted still made sound. I used an external HDD to play media files - next time it did not recognise it. Is this anyone elses experience? Why doesnt it provide a consistent feature set? Am i doing something wrong?