原帖由： Manuele Vaccari ,
The same just happened to me. I just found one proper explanation for it in this YouTube video (https://www.youtube.com/watch?v=rDVnp90aj_E). Basically, that one screw that goes over the Home button should not be tightened too much. As far as I understood, so that the metal plate doesn't bend (which it did for me).