There is plenty of written support. Join TuneECU.boards.net. A lot is on the TuneECU Facebook site under Files and Announcements. On the Boards site, there are “how to’s” etc. The Penner tune s on TuneECU.net. You can buy a DNK tune also. Unless your tech has an unlimited TuneECU license, you need to get the hardware and software yourself. That boards site tells you the recommended Android tablet (or phone) . You can’t download unless the app is registered correctly and that can be a ***** and take some time to resolve. If your tech has already done this, don’t worry about it.