VAG KM+IMMO Tool works for VW/Audi/Skoda/Seat car after 2006.06. It can be used for odometer correction, EEprom read/write, pin code read by OBD2 port. VAG KM+IMMO Tool support online update,easy to use.
And we will take 2009 Skoda Superb as an example to share the experience:
VAG KM+IMMO interface is the latest version V1.8.2. The newest version has avoided data loss problem during the update procedure. And the latest version adds NEC24c32& NEC24c64 algos, 95320 immo functions etc.
As soon as the package arrived at my door, I provided the sale girl the SN. They activated and updated the device and get NEC95320authorization.
I have a 1T0920881A dashboard which is configured with Nec24C32. Lucky that mine dash form is Nec24C32. If I have NEC24C64, I have to purchase NEC24C64 Update Module for VAG KM IMMO TOOL to work with VAG KM IMMO tool.
The VAG KM cable is not that difficult to play with. I had get myself a pdf manual to play with.
Xhorse KM+IMMO Manual Free Download:
http://www.xhorsevvdi.com/upload/pro/vag-km-immo-update-manual-english.pdf
My Superb is running 250,000 Km, while it displayed at 200,000 KM.
I hooked it up to change kilometer, read and change VIN number, it worked no problem.