VIN licensing

Tying your HP Tuners interface to a specific vehicle's VIN, using credits, so you're permitted to write tunes to that vehicle.

VIN licensing is the step where HP Tuners binds your MPVI interface to a particular vehicle identification number, spending credits, which authorizes you to write modified calibrations to that ECU. Reading and logging usually don't require it, but writing does. Once a VIN is licensed on an interface, that interface can re-write that vehicle as many times as you like; a different interface would need its own license for the same VIN. Licenses are tied to the interface, not your account, so plan around which dongle you'll use. For a safe and orderly project, read and save the bone-stock file before licensing, then license, then begin edits, so you always have an untouched factory baseline to revert to. In VCM Editor the licensing prompt appears the first time you attempt a write to an unlicensed VIN, and licensed VINs are listed in the interface/credits info dialog.