A post no one asked for but that will be useful to everyone: with the release of the jailbreak for iOS 7, after a while many users have had this problem, and well, there are a lot of them. I've found myself answering this question more than 10 times a day, so that's why I decided to make this post and video.
This problem is very common, but apparently many people still don't know what to do about it, so this post is for you, I hope it helps.
