Hello.
Im from Poland.
I have the same issue that u Guys.
When the phone is could everythong is cool, but when the phone has gettong wormed the autofocus stops working - just stuck and everything os blurred. I phink is a software and hardware issue, becose the objective is stock and its not mooved when i do the manual focus. Then when i going to the manual focus and touching the screen - nothing - not working. When the phone is getting cooled then everything going to be fine.
Please help, i dont now what i must doing.
PS: I have Update every software in my lumia.
PS: Sory for my English, is not perfect :P