How much time it takes to unlock after you click on the home button? For me, it's about 2 sec, sometimes I lift my thumb after clicking once and then go to click again, but by then it unlocks. Initially, when I got the phone it was much faster (on 7.0). Since upgrading to 7.1.1 it takes a little longer, however it does work every time. I just wanted to check with everyone that it's a software thing and not something related to hardware.