Frustrated, Alex searched his downloaded drivers folder. Among messy filenames like CH340_DRV.exe and USB2SER_OLD.inf , he saw a cleanly labeled installer:
Here’s a helpful (and slightly dramatized) story about that specific VCDS USB driver version, — and why version numbers matter more than you’d think. Title: The Case of the Silent Diagnostic Cable vcds usb driver version 02.10.00
He double-clicked the installer. A small command window flashed. Then: Driver installed successfully. Frustrated, Alex searched his downloaded drivers folder
He reopened VCDS. Green check mark. USB connected. K1, K2, CAN: OK. vcds usb driver version 02.10.00