I've been trying to flash the N9 in order to reboot it, but after i give the flasher -R command, and plug in the phone, the cmd screen remains at "Suitable USB interface (bootloader/phonenet) not found, waiting..." and remains that way. The Driver Software Installation on my Windows 7 says "Unidentified Device - Device uplugged" The phone, meanwhile, is charging so its evidently connected. What could be the problem?