OK, I got the screws back in, but it still looks like an unnecessary step. And I still have that little wing thing. But the phone is working and charging!
Whey did we take these screws out? Removal doesn't seem a pre-requisite for any other steps. In trying to put the phone back together, I can't get these screws back in - they don't seem to grab. But I also have this miscellaneous part that I don't know where it came from - it has one hole in the center and looks a bit like a wing. Anyone know what this is and whether it has anything to do with these two screws?