4ukey Activation Lock [upd]

If your phone is stolen, the thief cannot use it. The Bad: If you forget your credentials or buy a locked device, you are in trouble.

I can then walk you through the specific steps for your situation. If your Apple Account is locked, not active, or disabled 4ukey activation lock

Disabling the "Find My" feature without the owner's credentials when you still have access to the device settings. If your phone is stolen, the thief cannot use it