Yes I agree with every statement provided by user KacperA. There are people who know how to activate maps. I heard its not for publicity and knowledge about that is spreading really slowly. But I guarantee there are some informations about that somewhere on internet but I also couldnt reach the procedure I know couple of guys who are doing it but ofcourse dont wont to share infos. And yes they can done it via TEAMVIEWER so KacperA is 100% right there is something with firmware thing.