For these reasons, Apple recommends that users keep Find my iPhone enabled, but there are circumstances where you might want to turn it off. If you're selling your iPhone or passing it on, for example, you should disable Find My iPhone beforehand, because the new owner won't be able to disable it (unless they have your Apple ID password), which means they won't be able to restore the device to its factory settings.
Likewise, if you've acquired a second-hand iPhone or iPad and the previous owner hasn't disabled Find My iPhone, you'll want to unlink the device from their Apple ID, but of course you'll only be able to do this if you know their Apple ID password. Whatever the reason, here's how to turn off Find My iPhone in iOS.
How to Turn Off Find my iPhone in iOS
- Launch the Settings app on your iPhone or iPad.
- Tap your name in the Apple ID banner at the top.
- Tap iCloud.
- Scroll down and tap Find My iPhone (or Find My iPad).
- Tap the toggle to switch it to the white OFF position.
- Enter your Apple ID password when prompted.
- Tap Turn Off.