I just pulled open a 6 and a 6s hoping to swap the screens. The screen is shattered on the 6 and the 6s was having gps issues. I was hoping to get one working phone out of it. As stated above, the 6s has 4 cables connecting it to the phone board and the 6 only has 3. I don’t see any way people got that to work! Of course, I just assumed they were the same when I started and didn’t see this thread until after I had opened up both phones.