Hi I bought XGIMI Z4X from Alibaba.com about a year ago. It works well for sometime but then the Airplay and Miracast no longer work. I guess ther3 is a new firmware to fix this Airplay and Miracast problem. But how do you upgrade the firmware? Also how do you reset the projector? I tried to use a pin to push the reset hole but nothing happened? The projector seem to freeze and it cannot finish the booting. Please advice!