Any pop-up card whizzes want to help me noodle on a fold?

I am trying to make a pop-up cell phone but I only want it to fold in the middle horizontally and vertically. Or even just horizontally if I can get some kind of pop up that rotates the phone as the card opens. Any thoughts?

Edit: I gave up on it doing any sort of cool popping, but this is my prototype so far. https://imgur.com/a/SvAtH7e Thoughts?