No the G2 controller will not work with G3. the simulater has to use the G3 controller that come with the simulater. to install the sim you have to put in a serial code for the sim and controller. Maybe you could call kniveedge and see what they say. maybe they can reset or do something with your version to work with the new controller. or maybe they can send you a new package. or try and see if someone can fix your old one.