its ok , anyone can log on the website and see the picture of disassembling. It should cover more common error issue such as error 1 , 3194 over all ok good for a start but this should cover what's already not there on the ifixit website should be more focused on software related mysteries.
Got this as a guide to replace my daughters iphone back plate as it got broken and phone stopped working. Good instructions and images. Ironically since I sent it over to the Ex to use, hes never returned it. Must be good! (the phone btw. still didnt work after back screen replaced tho..)