The 9780.Z5 is the "Evolution" version of the ACTIA interface, designed to handle the multiplexed systems of newer PSA vehicles. Without the proper driver handshake:
Most users don't need a standalone driver download. When you install Diagbox (especially versions 7.xx or 9.xx), the drivers are located in the installation directory. C:\AWRoot\bin\fi\APPDIAG.SYS\Drivers
, leading to a "Plug in VCI" prompt. Firmware updates may fail , potentially bricking the device. actia psa xs evolution 9780z5 driver upd
If your PC isn't recognizing the VCI (Vehicle Communication Interface) or you’re seeing "Communication Error" messages, a driver update is usually the solution. Why Driver Updates are Critical for the 9780.Z5
If your driver is old, the tool will often fail to initialize the interface, signaling that a manual .inf file override is needed. 3. Manual Driver Installation (Windows 10/11) The 9780
A correctly installed device should appear as -> "Evolution Driver."
Before downloading new files, check how Windows perceives your device: Connect the interface to your USB port. Open (right-click Start > Device Manager). Look under Universal Serial Bus controllers . C:\AWRoot\bin\fi\APPDIAG
In Device Manager, right-click your device, select , and point the search to that folder. 2. Using the "PSA VCI Checker"