Find My iPhone, How To Disable / Enable: Starting from version iOS 4.2 Apple mobile devices have the opportunity to track the location of the free product through the application Find iPhone (Find My iPhone).
It transmits the current coordinates of the iPhone and iPad in the cloud service iCloud, where and are being monitored. In the case of lost or stolen, the user can go to the service and find out the location of the gadget, send him a message, play a sound, lock PIN-code or completely erase all information. This function is available for all the latest Apple mobile devices and even the Mac.
Find My iPhone Compatibility List:
iPhone 6 Plus, iPhone 6, iPhone 5S, iPhone 5c, iPhone 5, iPhone 4S, iPhone 4
How to Enable Find My iPhone:
To block the ability to delete iCloud account and disable geolocation,
1) go to Settings -> General -> Restrictions.
2) scroll down to sub Geolocation, enter it and enable the option "Deny change".
3) then return to the next level and go to the Accounts tab. There is also need to put a tick next to "Deny change". Thus, the thief will not be able to disable broadcast geolocation data and delete iCloud account without a password.