I use phone tools and it works fine with USB cable, however I have been unable to get the bluetooth to work. What I did have to do was first install version 4.0, get the phone working and then make it update to version 5.0. When I tried to install 5.0 first it would fail each time.
depends is the phone charging through the usb? or even is it being recognized through usb if not then 5.1 should fix the problem as it will include the drivers specific to each phone if you have a micro sd card in you phone make sure that your connectivity is set to modem and not memory card i ahve both the drivers and the mtp just have to make sure that the V9m is within the list of drivers
try all of the following links these are straight from the moto dev website each are marked for 32 and 64 make sure you download for the windows you have you might even have to use compatabilty mode but doubt it