Newbie with errors loading stock tune

[vmax]

Hello everyone- Long story short have a race tune on the truck that I have been tweaking with the help of some diesel place guys. I know very minimal basics on EFI-Live. Well I need to go to the dealer today and went to load a stock tune for the 1st time since I have owned the truck. I went to load it and got OS, Calibration and ECM errors. Well tried again with the same result. Tried a simulation complete reflash and it failed. So went back to my race tune and can not get it to load now. Can anyone guide me out of this mess? Thanks in advance.

BTW 2002 duramax crew cab.

[vmax]

After many many attempts I was able to load back my race tune. I guess the stock file was corrupted sent via email or the errors

detected invalid calibration make sure you load correct .tun file

.tun file____ OS not compatable with ECM

ECM is ____OS

Does the operating system numbers have to match your ECM OS on evry tune?

[GMPX]

Yes, the O.S must match if you are trying to load just the calibrations into a different ECM, you don't have to worry about that though, EFILive will automatically stop you flashing it in.

Cheers,
Ross