Disclaimer: Modifying DiagBox violates PSA's EULA. This guide is for educational use with legally owned hardware and software licenses.
The update is not a single jump but a series of sequential patches. You must follow this order to avoid software corruption:
Note: This article is for educational and informational purposes. DiagBox is a proprietary software of PSA Group (Peugeot/Citroën/DS). Always ensure you own a legitimate license and activation hardware.
: It is the most reliable version for standard Lexia 3 and PP2000 diagnostic functions.
: A Lexia 3 interface (original or high-quality Chinese clone). The hardware firmware is typically updated automatically by the software during the update process.
: Apply individual update files in sequence (e.g., 7.02 to 7.06, 7.06 to 7.44, etc.) until you reach 7.57 .
Updating Diagbox from version 7.02 to 7.57 is a common requirement for technicians needing to support newer Peugeot and Citroën vehicle models (roughly up to 2015). This collective update is often preferred because it consolidates many smaller incremental updates into one package. Pre-Installation Checklist Operating System:
Upgrading from version 7.02 to 7.57 is a common procedure for owners of Peugeot and Citroën vehicles using the Lexia 3 (XS Evolution) interface . Version 7.57 is widely considered one of the most stable and "perfect" releases for local diagnostic work. Prerequisites for Installation
before starting, as they frequently block critical update files.
Before updating from 7.02 to 7.57: