The guide was invaluable. I had no issues with the complete battery change out. I had my orig iPhone 5s battery that when I took it out it was amazingly wrinkled and looked aged. I did pry the battery out since I could not get a grip on the adhesive, but if you go slow, the adhesive slowly gives way. I think all the stories of people having issues just sounds like they go too fast and use too much force. Patience is a virtue when inside an apple product. I was pretty nervous but after I had dropped the phone and it looked like that caused all sorts of power issues I just guessed right that the old batter could not take getting banged around that last time. Thanks so much for the guide, I could not have done it without you and your tools.