From that last firmware the suckiness of z9s is horrible with constant black screen. Change HDD, change cable, change setting, just everything else does not fix it. Even went into black screen if I leave it alone for a while at home theater screen. So, no more firmware to fix? Anyone knows? If yes, it's time for me to abandon it and change to another brand. Had it with this....watching an exciting movie and at crucial part of a climax,it went black and the whole family goes wtf.