Tried to program modded tuner cal, but now I can't even program original calibrations. 99% and error. Black screen, rear camera works.
I used to do the same 🙂
I always write the vin in Get Controller info, in $90 and always worked to me OK. but, its ok knowing that too.
It fills the VIN in once doing the writing *IF* the utility sends it (not all do). For example, the HMI and Radio, you don't need to do this as it sends a different command.
