We have successfully developed a Flash Data Checksum Bypass solution to flash modified and signed .jcb files
Delphi DCM 3.3+ ECM (P/N 320/09705, HW C1, Extracted Binary Size of 1984KB)
This solution empowers to sidestep the flash data part checksum verification stage after 100% write.
ECM will pass verification and accept modified and signed .jcb file without restrictions
Important Note: EEPROM, Variant Coding \ Configuration Content Checksum is not supported.
It is strongly advised to back up the ECM using appropriate tools, so the ECM can be restored to its original state in case of ‘bricking’.