I've been living this taptic engine buzzing issue for about 1 week. It is like the engine is loose in the iPhone and hits whatever around it and it is a really disturbing sound. The sound changes according to how you hold your phone( if the phone is vertical the sound softens but if the phone is another angle the sounds really makes you feel bad. So guys, i wonder that how Apple treats the customers who live this issue. I mean what they do about it? Changing the taptic engine or replacing the iPhone?? Thank you all :)