Edit: After half day, my wife’s Mac started having the same problem. I have then applied the solution that I found in the Apple
iOS 7.1 Beta 3 Released To Developers And Includes Many Fixes
Apple have released iOS 7.1 Beta 3 to developers and it includes some interesting fixes for people to test out.
The third beta of iOS 7 has been released to developers this week and includes some important bug fixes and bringing 7.1 much closer to being finished overall.
The iOS 7.1 may not be available to the public for a while and according to a source, it was revealed that it may not be released until March.
iOS 7.1 Beta 3 can be downloaded immediately as an over the air update and you will need a developer account with Apple to do this.
The update is compatible with users on the following devices: iPhone 4, iPhone 4S, iPhone 5, iPhone 5C, iPhone 5S and Most of the iPad range. It can also be downloaded from apples own developer website.
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