Ok, Thanks a lot for your help!

Thanks, that worked. It did not ask me about the TCM part. I am able to connect the unit and tune, restore, scan, etc again. Do you have any idea what caused this issue with my unit? The update to the I2 updater maybe? Im a little worried about updating the unit now.

There was only 1 file in the tunes folder. Here it is, Its the ECM one. Originally I had 2 files, the ECM & TCM backup files which I posted on this post previously. Is that gonna be an issue?

@Mikel, So the unit is recognizing the truck now. But the issue I'm having now is the truck has a tune loaded on the ECM and I cant restore cause its not finding the original backup. And I cant load a canned tune cause the unit is recognizing that the ECM already has a tune loaded. What should I do ...

Done. Thank you. I will try 1st thing when I get home.

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Thx for your response. Here you go.

I guess so. Pretty frustrating! Im not sure what the cause of the errors are.

There is a guy named Mikel on here who seems to be able to help. Hopefully he can chime in soon and assist us with our issue. It does seem like a lot of other people are having similiar issues. I didnt have any issues until I updated the unit last, now the I2 updater window shows. Maybe something to ...

I have a 2008 Chevy Silverado 5.3L. I have used this tuner a few times on the truck to install one of the canned tunes with some additional mods and put back to stock with no problems. I recently updated the programmer to the new DiabloSport I2 updater and this seems to be when the problems started ...

Gotcha. Im going to reach out to DiabloSport as well. Glad your issue is resolved.

@Colestripes, Nice! So did you have a tune in the truck when your unit froze or was the truck stock at that point?

@Colestripes, did this work?

Im having the exact same issue. Except, I have the 87 tune in the truck now. It gave me some weird error code towards the end and then froze. It took the 87 tune and some additional stuff, but aborted the tranny firm shift. Now it wont recognize the truck at all.

My ...