Augmented Reality for UE4

hi, i read almost all the pages, and i see some users with the same problems. My camera on my nexus 5 is also upside down. I tried to change the FLIP in NOFLIP. But this doesnt change it. Do you you have another way. I have been searching in your blueprints, but i dont see where i can change this!

edit: with some other phones its not inverted. Only the nexus 5. But i would really like to solve this, because thats the phone i have to use for this project!