On CM2350 99% of the time the flash fails on the first flash with a $0548 error. Doesn't matter if checksum is enabled or disabled. I first thought the unlock process was causing it but it will fail with the 0548 error on flashes after the first flash. It is not to big of a deal for me when I am doing the flash but when e-mailing a vin restricted file and it fails then it requires a vin recovery file and is a major pain and inconvenience. Is there a work around or a flash procedure that helps with this error?