Novice here too. I pulled the screen back with a Swiss army knife, no heat needed. I broke off the flop lock in step 10, and pretended I didn't need it (that worked!). Because the phone worked but the screen didn't light up, I had to retrace to step 9, and push the main LED flop into its socket further. (Make sure the etched white marks line up!). Thanks whoever you are, I would offer a $50 lunch in NYC whenever you are here. Lastly, I noticed such an improvement in performance from when it had a slight crack in the corner, and concluded that even a small crack in the screen can slow down the phone a lot.