: Displays the current firmware version installed on the device. : Identifies if the device is a Revision B Revision C hardware unit. Select File : Allows you to choose a firmware file (typically vci_updater.com ) from your computer. Downloading
⚠️ Always scan downloaded .exe or .rar files with antivirus software before running them, as these tools are typically distributed through unofficial diagnostic forums.
However, the automotive diagnostic community actively hosts and maintains safe copies of this essential utility. You can generally acquire a tested installation package through community-hosted archives, such as the PSA Interface Checker Install on Google Drive.
Look at the line. A compatible full-chip tool usually displays 921815 C/ or similar. Step 2: Flashing New Firmware psa interface checker download link
Before downloading and running the software, ensure your environment meets the following criteria:
Allows you to upgrade or downgrade the device firmware to match your version of Diagbox. Why You Need It
Wait for the progress bar to finish and verify the success message before disconnecting the USB cable. Troubleshooting Common Issues : Displays the current firmware version installed on
Wait for the system to prompt an confirmation. Once completed, your device has successfully been flashed and can now be safely connected to your vehicle's OBD port. Best Practices & Troubleshooting
Manually upload specific .APPLI firmware files to upgrade or downgrade the device.
Change the firmware to Revision C, which allows compatibility with newer Diagbox software. Downloading ⚠️ Always scan downloaded
: Initiates the flashing process to update or restore the device's firmware. Technical Guide: Flash Process (Lexia B to C)
A common mirror used for Diagbox installations is available via Google Drive.