If the interface is stuck in a bootloader loop (indicated by flashing red lights), use the VCIConfig utility found in the VCDS folder. Even if error messages appear, go to the Update tab and click Check for updates to try and force a stable firmware reload.
You didn’t buy a $350 original Ross-Tech cable. You bought a $45 HEX-V2 clone from AliExpress or eBay—probably labeled “ATmega162” or “PIC18F” inside. And it worked… until it didn’t. vcds 2231 hex v2 clone repair install
Phase 3: Driver Installation and Loader Implementation After the firmware flash, the HEX-V2 clone is essentially a new device. When plugged into the PC via USB, Windows will detect it as a "Ross-Tech HEX-V2" or simply a "USB Device." However, running the official VCDS 2231 setup file alone may result in the interface being blocked. If the interface is stuck in a bootloader