| Problem | Likely Cause | Solution | |---------|--------------|----------| | “Interface not found” | Driver mismatch | Install FTDI or CH340 drivers for your clone cable | | Loader crashes immediately | Antivirus | Add folder to antivirus exclusions | | “License invalid” after update | VCDS updated | Reapply loader (or block VCDS from internet) | | Cannot access advanced modules (ABS, Airbag) | Low-quality clone cable | Need better cable with full CAN support |
The loader tricks VCDS into running in “licensed” mode while you use a VAG-KKL or HEX-USB cable. vcds loader