My phone has been great so far, but when I held it a certain way I heard a clicking sound. I originally thought I was pushing in on the SIM card cover, but in fact I was pushing the entire top of the phone down. When you push down right around where the headphone jack is toward the screen there is an audible click and you can see it press down into the phone. That means dust can get in there as it's not sealed properly. This is a major manufacturing flaw, and is the probable reason dust is getting into a few users front facing camera considering it's right there. I'd advise others to push down on the top of their phones to see if their phone is sealed properly. I just called AT&T and my white replacement is on the way. I'm not taking any chances with the black again.