Software rejects device due to signature/version

Modern Windows operating systems block unsigned drivers, which applies to many legacy Actia clone drivers.

Hold down the key while clicking Restart in the Windows Start Menu.

Even with the correct files, things can go wrong. Here are the most frequent problems reported by users and their potential solutions.

Driver installs but diagnostic software can’t connect

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The native environment for Lexia 3 and PP2000. Drivers install most easily here.

; disable Wi-Fi to stop Windows from overwriting driver files Troubleshooting Common Connection Errors 1. Device Drops to "Unknown Device" or Disconnects Randomly

The 9780.Z5 refers to the specific hardware reference for the Actia XS Evolution interface. This tool acts as a bridge between a vehicle's OBD-II port and a technician's laptop. Unlike generic OBD-II scanners that only read basic engine codes, this interface supports full multiplexing for K-Line, CAN-BUS, and SAE J1850 protocols. Key capabilities include: