So I'm trying to downgrade my firmware, which I have to do on a PC because I can only find old versions of the firmware for PC. I normally work on a Mac and that's all my Phantom 2 has ever been connected to. When I tried to connect it to the PC with the older version of the Software assistant, the Phantom would not connect. Does anyone know of any reason why this might be the case? Will the Phantom not talk to a PC once it's been connected to a Mac. It doesn't seem like that would be the case, but I can't figure out what it might be. Any help is appreciated, thanks.