Looking for guidance

[Trueblue]

Looking for help… my buddy has a 2016 Lml. We tried to load the tune onto the truck… we are getting error $053B… did we miss a step? The Autocal v3 came preloaded. The company which is was purchased from is closed during weekends… was hoping to resolve issue before beginning of the week.

[Webster]

Yo should check if the VIN is linked and the correct tune file is selected. Error \$053B usually means a mismatch or missing file.