The Amazon link for the most important part, the controller board, is incorrect, it links to a different product.

Well, that was much harder than the guide makes it look. My camera doesn't work now and even with reading glasses I could hardly tell the screws apart. (I did separate them during disasembly, but still...) Be sure to position the battery just right and if your phone is important to you, have a service do this. I regret doing it myself now. And if you DO try this yourself, get the toolkit or make sure you have a watchmakers kit and a suction cup.