If you're in LA then you'll see 5g only around the downtown area like by staples center. I am in the san Fernando valley and only get 4g. When I go to staples center my networks automatically becomes 5g. Idk about NY.
As far as the new update I believe It is only out on verizon network that is what I'm on and i was able to find it on new updates. It might be out to all phones now idk yet.
I have no Idea what mine is i can't remember. But I still i t took with me. I Just saw it on you tube and it looked Pretty Cool. like everything was changed, and Ive been up all nite trying to fig a ll this out