I was able to skip steps 6-9. When it came to removing the battery from my 15 month old phone, it wouldn't budge. I heated the back of the phone with a hair dryer for 5 straight minutes and the glue finally loosened up. I took the opportunity to clean the funk off the edges of my display and get any dust out of my phone before sealing it back up. The new battery I purchased from ifixit fit perfect. Using the BatteryLife app (only available on jail broken phones) the battery shows 1329 out of 1430 mAh (93%) usable capacity. For comparison, my 15 month old battery was down to 63%. Overall I'm satisfied with the ifixit experience.