Hi guys,
I was trying to chip my e39 540i 2002. I got a file from a German website. I have Galletto 4 and FG Tech for flashing ECU. However when was writing a modified file I got a message that "Checksum is not supported". At that point I didn't now that I shouldn't have kept on writing it on. I messed up and bricked my ECU. I've sent original and modified files for checksum correction and I got corrected file back. I've tried flash the ecu with my new file but I'm getting same error that checksum is not supported. Is there any way I can upload old original file or modified one somehow? Is there any other software which would work with galletto 4 (clone) properly ? Any help would be appreciate ! Thank You !