title: Downgrade From iOS 7 to iOS 6.1.3 on iPhone 4
body: <p>I have upgraded iOS 6.1.3 to iOS 7 on my iPhone 4. I'm unable to test my app on that phone using XCode because I have Xcode 4.6 and Mac OS X 10.7.5. Please help me out how to downgrade to earlier version. What should I do?</p>