New iOS 6.0.2 update on iPhone 5?

So I downloaded the new iOS update and my camera doesn't work anymore and my messages won't open. Is this from the update? How could I fix this problem? Should I restore my iPhone?

I too had this issue, resetting fixed the issues. But when you restore from backup iphone 5 becomes sluggish.
IOS 6.0.2 drains phone battery rapidly.

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