A technique not covered here is setting up a wifi hotspot to impersonate a device. I wanted to reverse engineer the protocol used by an inexpensive action came

A technique not covered here is setting up a wifi hotspot to impersonate a device. I wanted to reverse engineer the protocol used by an inexpensive action camera. I ran the Android app through a decompiler (JADX), and the app supported many different types of cameras, so it wasn't clear which calls were related to the one I owned. So I setup a Raspberry Pi with the SSID as the camera, logged the first API call. Then I ran that API against the camera, and then wrote a small python script on the Pi to return the same API result. I did that call by call until I'd worked everything out. I wrote it up here: https://www.hotelexistence.ca/reverse-engineer-akaso-ek7000/ https://www.hotelexistence.ca/reverse-engineer-akaso-ek7000/