I am using an iPhone 5S. I bought it on 1st Feb'14. I started to get problems in June, Gave it to the service centre for replacement and the problems. Got a replaced product after a week. I got the "New Replaced iPhone in Sept'14" Its only been a month and the replaced iPhone is also troubling me a lot. The touch ID button makes two sounds when it's pressed, The applications crash ALOT, approximately thrice everyday. It has never happened on my other apple products namely my iPhone 4, iPad2, iMac,Macbook Air, and the itouch. This is very disheartening to see atlas for an apple fan like me. Kindly Bring back your lost trust.