Find My iPhone is a useful feature that allows you to locate your iPhone or iPad if you have lost it. You can see where your phone or tablet is via a computer, as long as it still has an internet connection. This feature also protects your device: if Find My iPhone is turned on, your device cannot be reset. If you are returning your phone for repairs, this feature must be disabled. Otherwise, the device cannot be fully restored. You can turn off Find My iPhone in two ways: on your device itself or via iCloud.com.
You can also turn off Find My iPhone using iCloud if you no longer have access to your phone. When you disable it this way, you also delete all the files from your iPhone or iPad. Do you want to keep them? Then you should make a backup first. You'll find an explanation in the menu on the left. Are you sure you want to disable Find My iPhone? Then follow these steps.
Are you unable to clear your iPhone and have you already sent it in for repairs?
Then all you need to do is delete the device from the account. Please follow the next steps: