: Corrected generic parsing for better error code reporting and unblocked DTC (Diagnostic Trouble Code) support. Comprehensive Scanning

Note: The process is notoriously finicky. Many users report needing to reinstall Windows multiple times.

The "C4b" in the title refers to the specific hardware architecture of the VCI (Vehicle Communication Interface). This software release is optimized to squeeze maximum performance out of the C4 unit.

This is not a standalone software update but a specific software and hardware combination. Breaking down the name: