I took my af2 to service center early this month and they said that mine was having problems with the LCD. so they took my phone and was waiting for the parts to come. but after waiting for more than 2 long weeks, they decided to swap mine with the new one yesterday. I still find some (very small) areas on my lower LCD unresponsive, but not as bad as the old one. the new one seems more responsive. so I decided to just take it and just ignore it.