Aisin AQ250 — online firmware checksum recalculation. Compatible vehicles: Audi, Seat, Skoda, Volkswagen. 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.
После запуска файлы MOD и ORI временно сохраняются на сервере максимум на 24 часа для диагностики checksum. Скачать их может только администратор; затем они автоматически удаляются.
Aisin AQ250 — a control unit / TCU; the firmware checksums are recalculated after editing.
This unit is found on petrol vehicles Audi, Seat, Skoda, Volkswagen (2003–2020) — a total of 27 models, among them Audi A3, Seat Altea, Skoda Fabia, Volkswagen Polo Sedan, Seat Leon, Seat Toledo, with power output of 102–170 hp
Recalculation is needed after any calibration edit — Torque limit increase, Shift points / kick-down, Torque converter lock-up, Shift firmness, DTC removal: 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.