Help! Calculate chcksum Vitara hdi 90cv SID801.

[bypirata]

218211218211Hello, attached original and modified file. I need to calculate checksum modified file. The car will not start. Thank you! Thank you

[pinotec]

this file ori does not seem right to me, with what you read?
car start with file original ?

[ominimicu]

Bad read, and you flashed a partial, incomplete file back to the ecu....ecu is dead now, it s not because of the checksum.
read via BDM andhopefully you can put the pieces back together!

[pinotec]

no bdm for this ecu but 29f400,

sometimes when you do not know what better to remain silent