Windows 10 and 11 have more restrictive driver signing requirements and a tendency to replace the 9780.z5 driver with a generic USB driver that does not work. Symptoms include the device appearing as an “Unknown USB device” or failing to show under “ACTIA USB Devices” at all.
When you plug the device into your computer, it should appear in the Device Manager as or "USB Com Board Driver (Multi-instance)." If it appears as an "Unknown Device," the software will fail to communicate with the vehicle. How to Install the Actia 9780.Z5 Driver Follow these steps to ensure a clean installation: Step 1: Disable Driver Signature Enforcement
Windows 10 and 11 present the biggest obstacles. The Actia drivers are often not signed for these newer OSes, causing installation to fail due to driver signature enforcement. There have been many reports of errors and malfunctioning drivers after upgrades, leaving the hardware effectively unusable.
One of the most critical factors affecting driver stability and firmware compatibility is whether your 9780.z5 is an original Actia unit or a Chinese clone. The official 9780.Z5, manufactured by Actia in France, was originally supplied to PSA dealers. It is a high‑quality, fully populated circuit board with components that match the original design specifications.
Reads, displays, and clears all diagnostic trouble codes (DTCs). Actia Psa Xs Evolution 9780.z5 Driver
The is the essential software component that enables your Windows PC to communicate with the dealer-level Lexia 3 / PP2000 diagnostic hardware used for Peugeot and Citroën vehicles. Without the correctly installed driver, your computer will fail to recognize the USB interface, rendering diagnostic programs like Diagbox completely unusable.
If you have ever connected the interface to the internet while running DiagBox and were prompted for an activation code, this may affect the system's ability to detect the VCI. A full uninstall of DiagBox using a specialized cleaner and a fresh reinstall may be required.
: Use the PSA Interface Checker utility. Connect the interface, select "Activate," and read the firmware version. If your software version requires v4.3.x but your hardware is locked at an older v2.x architecture, update the firmware build through the utility to align with the installed driver parameters. 3. Error Code 03114 Request During Coding
Requires disabling Driver Signature Enforcement; older firmware won't match. Crucial Tip for 64-bit Windows (10 & 11) Windows 10 and 11 have more restrictive driver
This comprehensive guide covers everything you need to know to find, install, and troubleshoot the 9780.Z5 interface driver for various Windows versions. Understanding the 9780.Z5 Hardware and Driver Relationship
Confirm any security alerts by clicking
Look for an unknown device with a yellow exclamation mark, often labeled or "UMTS Web IO" . Right-click the device and choose Update driver . Select Browse my computer for drivers .
If you’ve ever ventured into the world of Peugeot, Citroën, DS, or Opel diagnostics, you’ve almost certainly encountered the Actia PSA XS Evolution diagnostic interface. This VCI (Vehicle Communication Interface), bearing the reference number , is the official dealer-level tool for the PSA Group (now part of Stellantis), and it remains the industry standard for comprehensive diagnostics across Citroen, Peugeot, and other PSA‑platform vehicles. However, as experienced users know, getting this interface to work properly on a modern PC can be a daunting task. At the heart of this challenge lies the driver for the 9780.z5, a critical software component that enables your computer to communicate with the hardware. How to Install the Actia 9780
: Reading and clearing fault codes (DTCs) across all vehicle modules (ABS, SRS, ECU, etc.).
If you are using a modern 64-bit operating system, Windows may block the Actia driver because it lacks a digital signature.
Because these drivers conflict with modern USB device configurations, many professionals run Diagbox and the Actia drivers inside a pre-configured Windows 7 Virtual Machine (using VirtualBox or VMware).
Because the 9780.z5 driver is bundled with Diagbox, the best source is the Diagbox installer itself. However, for manual driver files, firmware updates, and the “Interface Checker” utility, you will need to turn to the community. The following forums are the most active and helpful: