Always remember to test your connection (Options > Test) after changing hardware types to ensure your VAG vehicle is ready for coding and diagnostics.
: Confirming that the PC recognizes the connected Ross-Tech hardware via USB or Serial ports. vagcomhwtypeexe best
: For the most reliable detection, connect the interface to the car's OBD-II port first (to power the cable), then plug it into your laptop before launching the software. Comparison with Alternatives Always remember to test your connection (Options >