The original 9780.Z5 interface was designed during the Windows XP and Windows 7 era.
USB Device Not Recognized (Device Descriptor Request Failed)
Modern Diagbox versions (v7.xx to v9.xx) are designed for Windows 10/11, but the driver installation can fail if not done correctly. Step-by-Step Installation Guide actia psa xs evolution 9780z5 driver
: Monitoring real-time measurements from the vehicle's electronic blocks. Programming : Resetting service intervals and programming keys. Installation & Troubleshooting Tips Lexia aka Diagbox - C4 Picasso (2G) - Drive2
If you see a yellow exclamation mark or "Unknown Device," right-click it, select , point the search directory to C:\APP\DDC\BSI\Driver\ (the default Diagbox driver directory), and hit install. Managing Firmware Compatibility The original 9780
Select .
Then:
The splash screen appeared—a red background with a white lion. It was loading.
The driver is installed, but the software cannot communicate through the Virtual Machine (VM). Then: The splash screen appeared—a red background with
During installation, look out for a prompt asking to install device software from or "PSA" . Click Install or Trust software from this publisher . Once Diagbox installation completes, restart your PC.