Critical for vehicle safety, the software automatically recalculates the file's checksum after any edit, preventing "bricked" ECUs that would otherwise refuse to start.
: Automatically calculates and corrects the checksum bit sequence to ensure the integrity of the modified file before it is written back to the vehicle. Understanding the Driver Library
Some "full" versions claim to bypass dongle checks via virtual driver layers (note: this violates software terms).
Driver support for crash data clearing from airbag modules (e.g., Renesas, Infineon).