If the interface is flashing red lights, use the VCI Config Utility (accessible via the "Net" button in VCDS options) to "Check for Updates" and "Download Update" again, even if it throws error messages.
: To repair a software-blocked cable, you typically need to download a specialized loader, such as VIIPlusLoader . This tool bypasses the standard check and can often reflash the EEPROM to its functional state. Vcds Hex V2 Clone Repair
Caveat: Official Ross-Tech firmware is proprietary; clones may use reverse-engineered firmware. Do not use copyrighted firmware unless licensed. If the interface is flashing red lights, use