I did the repair without disconnecting the screen. I skipped down to step 13 and carefully held the screen while removing the battery. Adds a small element difficulty, but helps prevent all the issues others are having when reconnecting the screen.
No matter how hard I tried, I could not get the screen to separate far enough to where the pry tool could get it. Reading through some of the other comments, I followed 2 other people's advice to work the bottom left corner above the headphone input and then use a pushpin at the same time. (this is not recommended, but it worked!) I made a couple of hard to see marks in the corner but was finally able to get the screen off. I also did NOT take off the connectors to the screen and skipped the next few steps all the way down to step 14. Looks like a lot of people damaged their phones that disconnected the top screen.
