Updated 16 October 2013: this system to downgrade from iOS 7 to iOS 6 will no longer work, as Apple has stopped signing pre-iOS 7 operating systems for installation. However, we think it's worth sticking with iOS 7 (seeHate iOS 7? Give it a month and 5 reasons to upgrade to iOS 7) and we may be able to help with whatever is annoying you about the software. If you've not got the hang of iOS 7's many new features, you could try