Screws were missing. Not even sure if this set is for iphone 4 because there were a lot of very long screws that are not supposed to be in the iphone. The important "Wifi" screw was missing (Phillips 4.8). Also, there were more of some types of screws than it is supposed to be which is good. For example, screws for screen. iphone 4 need 6, and in this set there are 7 of them. However, even though there were more screws, many screws were missing.