Apple IPhone 4- 16 GB .

Apple IPhone 4- 16GB bought it used 2 months ago and was working fine but then updated the software through iTunes, now its showing the screen which you can see in the pics. I dont know whats wrong with the phone- so selling it as faulty. could be an easy fix for someone who knows about this. was using on O2 and was working fine- if interested please call Ray on 07428438640.