I completed this at the end of 2018, and it is a very thorough guide. The adhesive tabs broke off during my repair (this was my first, and there will be many more to come now that I have discovered this site). The tip about the dental floss worked really well for me. I used my wife’s hair dryer to heat up the back of the case and then slipped dental floss behind the battery and gently flossed the battery out. When I finished putting everything back together, it all worked perfectly. As long as you don’t try to use too much force anywhere during this guide, it is a very simple repair!