Always run a full "Auto-Scan" before doing anything else. Save this file! It contains your original factory coding, which is your only "undo" button if something goes wrong.
Whether you are looking for stability, specific legacy support, or simply curious if "newer is always better," here is an in-depth look at why VCDS 20.4.2 remains a favorite in the diagnostic community. 1. The 20.4.2 Advantage: Stability and Performance vcds 2042 better