Basically, this bug “was born” when the iOS 7.1 version released, and it keeps on bugging people at the iOS 7.1.1 version too. You can Fix Notification Center Bug on iOS 7.1.1 version, but first you have to identify what is the problem.
One of the most common questions is how to Fix Freeze problem with iOS 7.1.1 version, and fortunately there is a solution for you! There is not one reason why this Freeze problem with iOS 7.1.1 version exists and surely none can tell why this happened. Every situation is different, but there are some possible reasons behind it.
The release of iOS 7.1.1 version came with 3 major updates, but it also contained some small ones, like the In-App purchases feature! Read more!
Apple released just a few hours ago their latest iOS version and all iDevices that support the iOS 7 version, can install iOS 7.1.1 version without any restrictions.
Few hours ago, Apple released their latest operating system, the iOS 7.1.1 version. If you are already using the iOS 7.1 version, then it is safe to upgrade your iDevice, since there is not a method yet to jailbreak it