Locate your device in the tree view. Expand .

Using a standard, unmodified version of VCDS installer instead of the specific loader packaged with the clone.

What is printed on your internal circuit board?

: Plug the HEX-V2 into your PC via USB. Open Windows Device Manager. Look under Universal Serial Bus controllers or Ports (COM & LPT) . If it shows as "Ross-Tech HEX-USB" with a warning triangle, the driver is missing. If it shows as an unknown device or "FT232R USB UART," the EEPROM/firmware is corrupted.

Use a tool like FTProg to re-program the USB Serial Number to match the original clone ID required by the loader software.