I am having an issue with my 920 not locking in with proper focus. This occurs in good lighting using both methods to focus. My phone is an At&t version and is updated. the problem is not specific to my phone because I replaced my unit last week and the problem is still present in the replacement. When attempting to focus it cycles to the perfect crisp depth and then passes it bye to locks in to a blurry incorrect distance. I have tried all troubleshooting steps with no luck.....