ok, so i don't know if I'm the only one who gets this, but i would be just doing something on my iPhone and all of a sudden it would show mw the apple logo, like a respiring and then I get my lock screen again. This happens to me about 10-11 times a day. Also when it restrings I wouldn't be doing anything, like a couple of times I would open the settings app or the camera and it would respiring. any ideas?? btw I have an iPhone 5 iOS 7.0.4. all the cydia tweak like mobile substrate are updated to iOS 7 compatibility.