I been having trouble with proximity sensor, so I reset my iPhone setting. It seem to get a little better. Then I notice that every time I closed my phone, when I went to open it it would ask me for my passcode, so ok I went under setting to change this, when I notice that the only option I could choose from was to have the passcode lock come on "immediately", no other option came up. I called Apple, and of course they could not help me, because this is a "new occurrence", and all I could do was restore and set up as a new phone, or wait for the new update "that will be out soon" . I think I will wait for the update, it's not that bad, yet having to unlock my phone everytime it locks, I'll see how long I can last.