In addition to the metal "spacers," the screen for the speaker and the charging port housing, don't forget to transfer a few other things that weren't mentioned in the guide to your new rear case: the power button, the little metal switch for the sim tray; there's a tiny black speaker screen near the headphone jack that must be transferred over (might want to clean it off if it has collected dust); in the top left corner there are two more screws to loosen: one is for a tiny metal spacer piece and the other for the antennae connector cable; there is also a little metal square that cushions the antenna connector's socket; a small strip where the earpiece speaker would be that looks like a black rolled piece of tape; and finally, the foam cushion for the rear camera and the little black screen next to it. But yea... pretty self explanatory.