1. Find My iPhone helps you locate and protect your iPhone, iPad, iPod touch, or Mac if it's ever lost or stolen.
   Note: An iCloud account must be set up on the iPhone for this process to work.
   
2. With Find My iPhone set up on your device, you can do the following:
   
   -Locate your device on a map
   -Play a sound on your device to help you find it
   -Use Lost Mode to lock and track your device
   -Remotely erase all of your personal information from the device.
   
3. With iOS 7 or later, Find My iPhone includes a new feature called Activation Lock, which is turned on automatically when you set up Find My iPhone. Activation Lock makes it harder for anyone to use or sell your iPhone, iPad, or iPod touch if it's ever lost or stolen.
   
4. With Activation Lock, your Apple ID and password are required before anyone can:
   
   -Turn off Find My iPhone on your device
   
   -Sign out of iCloud on your device
   
   -Erase and reactivate your device
   Note: For more information, see the Apple Support article: Activation Lock Frequently Asked Questions.
   
5. Access Find My iPhone from any computer at icloud.com/#find, or download and use the free Find My iPhone iOS app. If you're having trouble with Find My iPhone, see the Apple Support article: Troubleshooting Find My iPhone.