Touch ID Problems

I've just updated my iPhone 5s to iOS 7.1, but immediately after the upgrade, the Touch ID doesn''t work. I tried to key in my fingerprint again, and the reading of my fingerprint takes very long. After this process, I tried to lock and unlock my iPhone with my iPhone. It cannot read.I tried to restore my iPhone, but it doesn't fix the problem. Anyway to solve this problem? Any help would be greatly apreciated!