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by Igor
Sun May 09, 2021 5:56 am
Forum: US ALDL ECUs
Topic: GM BCM programming how to calcualte checksums?
Replies: 13
Views: 36238

Re: GM BCM programming how to calcualte checksums?

I can segment swap certain GM BCMs. I have a educated guess as to certain booleens are for, trouble is I can't figure out how to calculate the checksum (CVN) I've tried flashing without updated checksums and it bricks at 98%, but then is recoverable with GM SPS. The bins I have to don't show the CV...