Flashing the wrong firmware version, causing the ACTIA USB driver to lose communication with the hardware entirely.
Open your Device Manager and manually update the driver for the "Inconnue" or "ACTIA" device, pointing it directly to the driver folder in your Diagbox installation. 3. Resolving the "Init Failed" Loop psa interface checker scary mistake fix
PSA Interface Checker and the underlying ACTIA drivers were built for 32-bit systems. Windows 10 and 11 64-bit actively block the unsigned legacy drivers needed to communicate with the chip. Flashing the wrong firmware version, causing the ACTIA
Diagnosing Peugeot and Citroën vehicles requires specialized hardware. The Lexia 3 cable (PP2000) and the PSA Interface Checker software are the industry standards. However, users frequently encounter a terrifying error: the software fails to recognize the hardware, or worse, labels the expensive interface as corrupted or cloned. Resolving the "Init Failed" Loop PSA Interface Checker
Upon reboot, press or F7 to "Disable driver signature enforcement."
These errors are terrifying because they make the user feel like they have permanently destroyed (bricked) an expensive physical tool. In 99% of cases, the hardware is perfectly fine. The issue is almost always a caused by modern Windows security or driver conflicts. Step-by-Step Fixes for the Interface Checker
If you are still stuck trying to get your diagnostic tools to communicate, let me know: What are you running? What Diagbox version are you trying to connect to? Is your Lexia cable a full-chip or lite clone?