@@RadovanPalik I did it with a autel then I looked at my xtool and seen it had that do you know the steps I don't wanna have to ever take one to the dealership again!
@@mandybaker8544 Just use the BMW CGDI. It has a 99% success rate and when it fails (happened to me several times), it reprograms the unit itself and everything is OK. So the ISTAP success rate is always 100% via OBD.
@@mandybaker8544 Feel free to pull the cable during the downgrade just for fun. It will fix itself when you put Connect and if not, there is a Programming menu. You select CAS and go to program. In 10 minutes the car starts.
