What happens if:
- You're travelling without a phone
- You show another phone, but you also flying with a Note 7.
My guesses:
a) Nothing happens. You get on a plane and fly to your destination just like normal.
b) Then you're committing a crime. If it doesn't explode, you likely will not get caught and charged with anything. But if it does explode, or you otherwise get found out, you'll get charged with (I'm assuming, I'm no layer or law enforcement) disobeying an FAA order as well as deliberate endangerment of a plan full of people.