An edit to my above comment: by digitzer, I mean the LCD shield. My apologies.

I think it's important to note that depending on how a screen was damaged, make sure to insert the pic under the black bezel directly under the actual screen. This bezel is a frame around the digitizer. I unknowingly inserted the pic between the bezel and the screen, and separated them both. I did this all the way around the phone. So I basically had to struggle to keep together two different sections of the display assembly because of this mishap, until I removed all the ribbon connectors. It made things much more difficult.