I tried upgrading firmware on one of my almost new G1WH with FWDM800H.bin by copying the file to microSD root directory then powered on the G1WH. It seems my G1WH battery almost drained it can't hold charge, the USB connector not tightly connected to the power source turned on and off while in process of upgrading firmware, it happened to fast. Now the G1WH don't even start, if plugged to the power source it's blue LED lit but don't start at all. Is there way to unbrick this?