So, I have an iPhone 4 on iOS 7.1.2 and I've been using it with the cellular data switch off since I haven't paid my services. I made the payment and the 3G icon reappeared on the status bar but now, every time I'm using it the GPS icon is always there too. No matter if I turn location services off, the icon will be there. In the location services there's no icon next to any app so I can't see which app is turning it on. When I'm on EDGE or WiFi, the GPS icon disappears from the status bar. It easy to notice the fast battery drainage. Has anyone had this problem before?