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The driver is running fine, but the firmware version on the 9780.Z5 chip is too old or too new for the specific software version you opened.
Do not be tempted by fake driver sites. Find a verified, signed version from reliable diagnostic circles. Treat your driver setup as carefully as your hardware. When your laptop finally pings the ABS module or resets the oil counter on that stubborn Citroën, you will know the 9780.z5 driver was the silent hero.
Confirm any security alerts by clicking
Navigate to the installation directory of your DiagBox software (usually C:\AWRoot\bin\fi\driver or similar).
. It serves as a Vehicle Communication Interface (VCI) that bridges a vehicle's OBD-II port with specialized dealer software like The Evolution of the 9780.Z5 Original Purpose Actia Psa Xs Evolution 9780.z5 Driver
Different hardware revisions exist—such as the 921815C or 922173A for the "R-VCI"—and each has its own driver requirements. The 9780.Z5 is a dedicated PSA interface, so it cannot be used for other brands like Ford or GM without additional tools.
The golden rules for success are:
Look for an item with a yellow exclamation mark named , "Um98" , or "ACTIA USB Devices" . Right-click the device and select Update driver . Choose "Browse my computer for drivers" .
This is the updated, full-chip version. It is fully compatible with all versions of DiagBox and supports the latest Peugeot and Citroën vehicles. The driver is running fine, but the firmware
Complete Guide to Actia PSA XS Evolution 9780.Z5 Drivers: Installation and Troubleshooting
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