Is your camera lens the dirty sometimes a dirty camera lens can be the problem.
Is it focusing right? Try a different camera app. If the problem persists then it might just be the actual hardware not software problem.
I had a friend that got her first smartphone not long ago and loved it. Then, all of a sudden, she was complaining about blurry pics. I took one look at the phone, wiped the fingerprint off the lens, and all was well.
However, it could also be that you're juttering a bit, especially if the blur is more noticeable in low light (you'll see it more than with daylight pics). Our phones don't have image stabilization for photos, only a digital stabilization for video.
The Maxx is my 4th Android phone. Always taken lots of pics with my phones and am familiar with issues of dirty lenses. This phone's stock camera app is really bad with fuzzy pics. Something about the way the auto focus and the shutter lends itself to blurry pics. I switched to a third party camera app and now pics are fine.