I woke up this morning and noticed by box was blank (not showing anything on the display screen, no clock, no power button light). I thought it might be the power supply but I could hear the fans/drive spinning. It was unresponsive to the power button. I unplugged it and plugged it back in and went to work, assuming, like you, it was the new update. I came home, box booted/ works fine, but no update, still the same firmware (at least as far as I can tell.) So it's not just you. Where are you? I'm in Durham.