Most VAG KKL 409.1 cables use one of two internal chips to convert USB signals to Serial data. Identifying which one you have is crucial for choosing the right driver:
VAG-COM 409.1 and VCDS-Lite only look for the cable on . how to install vag kkl 409.1 on windows 10
If Windows 10 blocks the installation, you may need to restart your PC in "Advanced Startup" mode to temporarily disable driver signature enforcement. Step 2: Configure the COM Port VCP Drivers - FTDI Most VAG KKL 409