Version 7.57 is often distributed as a "pre-activated" or cracked version for aftermarket Lexia/PP2000 interfaces. If the crack/replacement files were not applied correctly, the software reverts to a demo or time-limited mode.
Version 7.57 lacks the server connection for online coding found in newer versions. A workaround exists for on newer Peugeot models (post-2016), but this solution works only on certain models (like the 308 T9). diagbox 757 fix
Diagbox 7.57 automatically updates the firmware of connected cables. If you have a cheap clone, this update "blacks-lists" your device. Version 7
Base Setup (V7.01/V7.02) ──> Update V7.02 to V7.57 (Direct Patch) A workaround exists for on newer Peugeot models
Diagbox 7.57 requires the Lexia 3 interface clone to run a specific firmware version (usually firmware / Reference 921815 C/ ). If your interface has older firmware, Diagbox will refuse to communicate with it. Download and open the utility tool PSA Interface Checker . Connect your Lexia tool to the PC via USB. Click Activate to read your current firmware status.
[Vehicle ECU] <---> [Lexia 3 Interface (Firmware)] <---> [USB Driver] <---> [Diagbox 7.57]
"Procedure Entry Point Not Found".