My friend got an lb7 not too long ago so I threw some of my simple tunes on his truck for him. Now he bought some tunes from a big tuner and wants me to load them on his truck but the tunes are V8, Ive only used 7.5. I downloaded V8 so I could open the file but its saying it cant see the cable and that if a device is connected make sure its not being used by 7.5. I searched around and saw to try installing older drivers and that hasnt seemed to work... Can I convert that tuners file to 7.5 or is there any other way for me to be able to load that tune with my v1.2 cable?