Oh that makes sense, so I guess the MTX tuner-pro checksum plugin cannot handle it. I guess I should contact them so that they can look into the issue.
I will try your file as soon my galetto cable arrives so I can revive the ECU if needed. Is it going to be possible to modify your file (other maps than the *_UM ones) safely without freaking out the ECU again with a wrong checksum?
Thanks
Well, I'm using WinOls so I've fixed my chechksums, but if you modify maps again then you might experience same thing