When your computer connects to the internet, or when you update to a newer version of the VCDS software, the program runs a security check. If the software flags your cable's serial number as blacklisted or counterfeit, it writes data back to your cable, wiping or corrupting the internal EEPROM. This effectively "bricks" the device, changing its device ID and causing Windows to reject it.
The newer VCDS software detected the clone and automatically blacklisted it. VCDS Revoked Fix: Scenarios & Solutions Scenario A: Fixing a Genuine VCDS Cable
: If the software detects that the hardware's serial number or security signature is invalid, it marks the license as "Revoked" or "Unauthorized," effectively locking you out of diagnostic functions. Common Reasons for Revocation vcds revoked fix
Click on the Devices menu and select Scan and Parse . Your device should appear in the device tree structure, even if it is currently corrupted.
: Allowing the software to "phone home" while the cable is plugged in, which triggers a license check. VIN Limits When your computer connects to the internet, or
Use a USBASP programmer (for Atmega chips) and connect the pins (MISO, MOSI, SCK, RESET, VCC, GND) to the corresponding pads on the VCDS PCB.
Unplug the cable from both the PC and the car's OBD-II port, then plug it back in to reset the connection. The newer VCDS software detected the clone and
If you are seeing a "License Revoked" or "Interface Not Found" status in VCDS, it typically happens because a non-genuine (clone) cable was detected by the software during an automatic update or while connected to the internet. Category Details Primary Cause
This rarely happens, but if it does, it usually means there is a corruption in the interface's internal firmware or a synchronization issue with the Ross-Tech servers.
Plug the cable into a USB port on a computer with an active internet connection.
Open VCDS and click > Config (or use the standalone VCI Config tool). Navigate to the Update tab and click Check for updates .