I am looking for an ECU original file or file with "IMMO OFF" for Merc B200 (W245) ECU SIM 266

ECU# A266 153 64 79
HW: A001 446 04 40
SW: 002 448 51 40
SWupg: 004 447 94 40

The file I read with BDM is corrupt or chksm is wrong, and car don't start

Any help would be greatly appreciated...!!!