Using Find My iPhone with Family Sharing
It's also possible to find other family members' devices using Family Sharing. To enable this service you need to have Family Sharing set up on your device and for all the other members of your family group to have Find My iPhone switched on. Now, if someone loses their iPhone, the whole family can help track it down.
How to turn off Find My iPhone
If you decide that you want to deactivate Find My iPhone, which you'll need to do if you're sending your iPhone off for repair, for example, or if you're concerned about privacy, you can do so by going to Settings > iCloud and then tapping to turn off Find My iPhone.
Turning off iCloud will also turn off Find My iPhone, as will erasing your content and settings by going to Settings > General > Reset > Erase All Content and Settings, which you'll want to do if you're selling or giving away your device.
If you're unable to access a device but want to turn off Find My iPhone, you'll need to go to Find My iPhone on iCloud.com, and then click All Devices. Choose the device you wish to remove and then click Remove from Account or the 'x' button.
If that device comes online again it'll reappear in Find My iPhone - if this happens and you're unable to access the phone to turn off Fine My iPhone properly, you can click All Devices and then click Erase. This will completely wipe the iPhone or iPad the next time it's online (although credit card information stored on Apple Pay-enabled devices should be removed immediately even if your phone is offline), so none of your information will be accessible to whoever now has the device and it'll also be removed from Find My iPhone You'll then need to enter your Apple ID password.
Once you've erased the device you can click Remove from Account.
What to do if your iPhone is stolen
There are a manner of options available to you if your iPhone is stolen. The first is fairly obvious - report it to the police. The police have resources available to help track down the person, especially if Find My iPhone is installed on your phone.
The second option is to register your iPhone with Immobilise. Immobilise.com is a free website where you can register the details of your property - not just your iPhone, but almost anything - by uploading a photo and a description of the item.
It's recommended by police forces throughout the UK and is used when dealing with lost or stolen property. If the property is registered on the Immobilise database, police can identify who the lawful owner is and return their property.
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