Has something in a recent update causing issues with flashing 2350B and 2450B ECMs? I attempted to bench flash a 2450B control with a file which errored out with $0548. So I thought the file was bad. Then I attempted to flash a known good file....$0548 error. OK so now we are tow files down. Lastly I tried a stock file.....$0548 error. Enough with this ECM so I move to a 2350B ECM on the bench. Connect everything up and flash a known good file......$0548 error??? Getting frustrated I try a known good stock file....$0548 error.

Two different ECMs with several different file (most are known to be good) failed to flash with $0548 error. This was all within about a 2 hours span.

Jump forward to this week. Completely different ECM, truck, file, Flashscan V3, laptop..........flashing a known good file.....$0548 error

What is going on with EFI?? Everything is up to date and still having issues with this!!