When samsung galaxy on max will get oreo update....

Firstly it is working nicely but when i once removed my card after that i can't register my card..it is always saying an error occurred...i have also tried to uninstall the app and install again and also clear data from setting and samsung account......

The devices cheaper than on max got it first....its frustrating to wait now....send 17k for nothing...like vivo and mi are seems better now

When will samsung galaxy on max get oreo update....still waiting from 3 months

Sir when will i get update of Android oreo for my samsung galaxy on max....also tell about portrait mode for rear camera...