Bosch DQ381 — online firmware checksum recalculation. Compatible vehicles: Audi, Cupra, Seat, Skoda. Upload MOD and ORI — result in a second, preview is free.
The plugin is already selected. Upload your MOD and ORI firmware — you'll get the result in a second.
Bosch DQ381 — a DSG automated-transmission control unit (VAG MQB/MLB); the firmware checksums are recalculated after editing.
This unit is found on бензиновых и дизельных vehicles Audi, Cupra, Seat, Skoda, Volkswagen (2012–2021) — a total of 116 models, among them Audi A1, Cupra Ateca, Seat Ateca, Skoda Karoq, Volkswagen Arteon, Audi A1 Sportback.
Recalculation is needed after any calibration edit — DSG launch RPM raise, DSG torque limit increase, DSG kick-down threshold, Stage 1 DSG software: the checksum no longer matches, and the ECU throws an error or refuses the firmware.
Upload the modified file (MOD) and the original (ORI) — the tool compares them, finds the affected regions and recalculates only the required checksums, leaving the rest of the calibration untouched. The result is ready in a second and free; downloading the fixed .bin requires registration in the portal.
Other checksum plugins from the same manufacturer — open any of them to recalculate the checksum.