For clones that are not physically damaged, you can often reset the internal memory using third-party loader tools.
The world of VAG diagnostics is flooded with cloned hardware, and failure is inevitable. However, thanks to the hacker community and cheap EEPROM programmers, the is not black magic. By identifying whether you have a corrupted license chip, a dead CAN transceiver, or a Windows driver conflict, you can restore functionality in under 30 minutes.
Repairable via EEPROM flashing but limited to older protocol speeds.