prc2.1 25640 unlock error

[dashtec]

can any1 sort unlock issue
ive tried but when i write file ecu reject when it reaches 100%


can ay1 help thx

[roman61]

unlocked is OK witch tool you use for writing file ?

[milanocito]

it is chksum problem let the device to do the chksum

[kospoz]

Can you put back the original file?

[dashtec]

fgtech
couldnt read original stopped at 15%
so decided to write another file wih dpf off

car wont start
ive found same flash but cant write file to ecu

[kire106ka]

FRIEND
You can not write another soft to these ecu so now ecu is in sleep mode you need to find original soft number file for that ecu or better go to dealer on software uppdate another option is vas to reflash ecu