Just received a very fine ipad air from a fellow here. Also a case, that is a genuine apple one from someone else. However, unlike my iPad mini, when I close the case, it still stays on.
I checked the auto off thing as it says to do, in settings, but no, still wont go off.

Even found a mini magnet , which, so the winternet says will do the job on the right side of case.

Any ideas?