The screws that attach the black plastic in step 3 are NOT #2 phillips. This is reasonably obvious from the photo but the misleading caption should be changed. They are T5 Torx bit screws. Also, the plastic camera sub assembly in step 4 has 3 small t shaped tabs that shear if you pry it away from the phone. I could not see a way to remove the sub assembly without damaging the tabs so the 4 T5 screws will have to keep it in place from now on.