If you are in a situation where your truck was written off, or for whatever reason you don't have the ability to put your tuner back to stock and your tuner remains VIN locked, then it's essentially useless at this stage. Purchasing this unlock code will allow you to reset your unit back to a factory unlocked state and remove the VIN lock, which will allow you to install the tuner onto another vehicle without having to purchase a new device.

How it works:

To begin the vin unlock code process, we’ll need the root (challenge) code, which is generated by your tuner.

Power up your device (HIGHLY RECOMMENDED to power it via USB source (such as a laptop, or really anything that has a USB port on it) rather than directly to the truck via the OBD-II interface.
Press the TOP LEFT button to open the main menu.
Scroll down until you see the SHOW SETTINGS sub-menu, and then press the corresponding menu button to select it.
Hold down the BOTTOM LEFT BUTTON until the unit beeps - this may take up to 20 seconds. After it beeps, release the button and it will bring up a 4 digit code at the top of the screen. This is your Root Code. Note: Your root code is NOT 1111. It is the next set of four numbers displayed on the screen.
Enter this code into the order form on this page, as well as the type of vehicle that the tuner is CURRENTLY LOCKED TO (in other words, the type of vehicle that is listed in the Show Settings screen - see sample image).
That's it for now - Further instructions to complete the process will be emailed with your unlock code.

What we need:
All we need is to know what vehicle the tuner is currently locked too and the Root Code.