If

The knocked-thus-dead Samsung is starting surgery.  

If I ever meet whoever it was that thought that welding delicate, flush glass panels with hot-melt glue was a Good Idea, I may well insert these little blue things in places where it hurts.

The back panel (not started on the front yet) is glass and about 0.2mm thick. to get it off (solely to get to the connecter for the front panel) you have to heat the phone to melt the glue (the sausage thing is hot) then gently insert the thin blue things, aiming to insert it enough so that the glue doesn't stick again when it cools, but not to insert just that little bit too much so that the back snaps.  These are, of course, mutually exclusive.

Hey ho, at least replacement backs are relatively cheap..