Reassembly: reconnecting the press connectors upon reassembly was so hard, even for the ones not seated in a recessed location !! It took me two days to get them reconnected. What helped me was to shine bright lights on all sides of the iPhone and then hold the iPhone vertically like a book and press it in that way. They are now all in, but the touchscreen functionality has disappeared :( so I will need to reconnect that one.