License Revoked Fix - Vcds

If your VCDS (VAG-COM Diagnostic System) shows "License revoked" or a similar license error, the usual causes are: corrupted license file, hardware ID mismatch (dongle/USB token change), firmware or software update incompatibility, or expired/invalid license key. This guide gives step-by-step fixes and preventative tips.

How do you know if your cable is real? Open the VCDS software. Go to Options > Test. Look at the "Interface Status."

If genuine, proceed. If fake, bin it and buy a real cable. Vcds License Revoked Fix

This applies primarily to HEX-USB (pre-2015) cables with a removable 93C46 EEPROM chip. The license is stored here. If the chip degrades, the license appears "Revoked."

You will need:

The Realistic Advice: Do not attempt this unless you are an electronics engineer. One wrong flash and the cable becomes a brick. Send it to Ross-Tech instead.

Follow these steps in order. Do not skip around; a later step may fail if an earlier step is ignored. If your VCDS (VAG-COM Diagnostic System) shows "License

If the firmware utility fails to see the interface, and you have a legacy HEX-USB+CAN (the old black box with a DB9 connector), you are likely dealing with a hardware failure. Specifically, the electrolytic capacitors inside dry out after 10+ years.

The Fix: Soldering. Replacing the 1000µF 6.3V capacitor on the board usually restores voltage stability, allowing the license chip to be read again. This is advanced DIY—or a $50 repair job from a specialist. How do you know if your cable is real

Do not open the main VCDS software. Instead, navigate to your C:\Ross-Tech\VCDS folder. Look for an executable named VCDSInterfaceUtility.exe. Run this as Administrator (Right-click -> Run as Administrator).

Unplug the interface from the car’s OBD2 port and your PC.