Bosch EDC17CV44 — online firmware checksum recalculation. Compatible vehicles: Anhui Hualing, Camc Truck, Challenger, Chenglong. 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 EDC17CV44 — a Common Rail diesel ECU built on the Infineon TriCore core. Firmware protection combines a software calibration CRC and a cryptographic signature (RSA/CVN) over the CFG and CAL areas; after editing, these sums must be recalculated or the unit will reject the file.
This unit is found on дизельных vehicles Anhui Hualing, Camc Truck, Challenger, Chenglong, Faw Jiefang, Gaz, Howo, JAC Motors, Komatsu, Massey Ferguson, Saic Hongyan, Shacman, Sinotruk, Thaco, Valtra, Weichai, Xcmg (2012–2020) — a total of 34 models, among them Anhui Hualing Camc, Camc Truck H7, Challenger MT400, Chenglong M7, Faw Jiefang Tolva, Gaz GAZon NEXT.
Recalculation is needed after any calibration edit — Stage 1, Stage 2, DPF off, EGR off, AdBlue/SCR off, DTC removal, Flap off, Lambda off, Speed limiter off, Torque monitor off, Hot start fix: 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.