Edited a map by hand and the ECU rejects the file? Upload your original read and your modified BIN — our engine detects the ECU, recalculates the checksum/CRC (CRC32 / ADD32 / ADD16) and gives you back a flash-ready file. FREE for customers
Drop your original OEM read and your modified BIN. They must be the same ECU dump with identical size.
The engine fingerprints the ECU family and recalculates every checksum block — CRC32, ADD32, ADD16 and Bosch GF(2)/CVN signatures.
Get your corrected, flash-ready file in seconds. Your uploads are deleted right after processing.
The free online tool covers the most common European petrol and diesel ECUs. Need more? The desktop Softechpro Solutions software handles 260+ ECU families offline.
The online tool corrects Bosch MED17, EDC17, MEDC17 and MED9.1, Continental Simos18+, Delphi DCM3.x, Magneti Marelli M74/M86 and VAG DSG (DQ381). For EDC15/EDC16, Denso, Siemens SID, Hyundai/Kia and newer Bosch MD1/MG1, use the desktop Softechpro Solutions software which covers 260+ ECU families.
The original (clean OEM) read is used to detect the ECU family and confirm the checksum blocks are intact before computing corrections on your modified file. Comparing both files is far more reliable than single-file detection.
No. Your uploaded files are processed and then deleted immediately. We never keep your original or modified dumps.
CRC32 (IEEE 802.3), ADD32 dword sum and ADD16 word sum, plus Bosch GF(2) matrix solving for MED17/EDC17 RSA-style signature blocks (CVN). These are the same techniques used by professional ECU tuning suites.
It is completely free for registered Softechpro customers and does not consume any tokens. For unlimited offline use and full coverage of 260+ ECU families, the Softechpro Solutions desktop software is €299.
The desktop Softechpro Solutions suite corrects checksums for 260+ ECU families offline, plus DPF/EGR/AdBlue/DTC off, Stage tuning and DTC diagnostics — all in one app.
See pricing — €299 one-time