Originally Posted by
wait4me
If you are flashing in V8, and you open another instance or file. During the flashing event, Especially a cummins ecm, It will fail the flash after it gets to the end. The polling of the usb device during the open event or any attempt to communicate to the flashscan to verify things, interrupts the flash event and makes it not recoverable. Gives a checksum error on the flash.
Another instance of the same thing is, Have a file flashing in the background, and open and edit a file and save that file with a lock, where it checks usb serial number/info, at that time as well, it will take over the cable for a brief second, causing the flash to go bad.