NOT KNOWN FACTUAL STATEMENTS ABOUT ISTA+ BMW

ive been obtaining challenges receiving it to connect to my vehicle but I used to be striving on an e91 so unsure if that is the rationale why. I will try it on file collection next week and see if I've any luckexact same and upon scanning no mistake codes whatsoever. Kindly any person help concerning what can be the issue. Thanksive been obtaining