For the past few weeks my camera has intermittently been unable to focus on things at all. Some times turning the phone on and off works, some times taking battery out works, factory reset, but nothing seems to be working now. It's constantly blurred . And yep I know how to use the focus tap and yes I have checked that the lense is clear. The internal front camera is fine. Can't be bothered going in to the shop for them send my phone away for three weeks while they work it out . Any one know ?