My husband & I are both having the same issue. Happened after the AT&T 4.4.4 update. We even did factory resets - what a pain. That did fix another problem we were having - not able to send MMS or download received MMS. The camera seems to work fine, but now we don't know if we're in focus or not, as before it would show green (in focus) or red (out of focus). Very annoyed by this as we've only had the phones for about a week. Hoping Lollipop will fix this, but it could be a while before we get that.