I wonder if we should NOT run the tuner updater for a certain period of time (to ensure we dont lose our custom TCM installs)??

SUCCESS!! THANKS FOR GETTING THIS RESOLVED SO QUICKLY!

I had this weird feeling that the group update was the problem. Will give it another go now.

Tried calling Diablo again but the tech support line said over an hour wait & to call back later. Hopefully, they're going to get this resolved for us.

No luck...AGAIN. Starting to get really really frustrating.

That was the 1st time they stayed in the drive. I deleted them, copied them back into the drive, tuner imported them again, then i disconnected the tuner, reconnected it, ran update check, downloaded & imported the same "group update" I've done previously. Now I'm going to copy the same custom tune ...

Imported both files. See attached new Info file. Please let me know if you see them installed now.

I've saved them 3 times and let the tool import them as well. I just noticed that they are sitting in the drive so I'm going to delete them and try it again.

Hey guys, so I think Im in the same boat as IrishNation. 2015 Silverado that's not allowing me to install custom TCM tune. I've done everything as listed in the thread several times to no avail. I just got off the phone with Diablo & they told me to post my Info file and Mike should be taking a look ...