Help, does anybody know how to adjust the pitch on the feiyu tech mini 2d gimbal. Ive got it working with the upgraded controller wheel, but it doesnt travel to 90deg down position. The adjustments in the naza assistant dont effect anything as they are greyed out and not active although they are adjustable. Ive been on the feiyu home site and there is a only usb driver download which i cant open as win7 says unknown file and the gimbal downloads are firmware downloads, again unknown file. I cant find any gimbal software to adjust the pitch travel etc.