I am now on a unlocked 1.1.2. Everything is working fine except that Slide to answer isnt working most of the time. When a call comes in, I get the slide to answer screen. When I try to slide, it isnt responsive and just sits there. So I have to double tap the Power button the reject the call and call the person again. It was a rare issue before but now 3/4 of the time, it freezes. Any suggestions? Also, I have 4 yellowish circles on the underside of the screen. Any idea what they are?