Find My Phone require an MS account is logged in on that phone and it has access to internet. There's no legal way to track phone using IMEI (unless you're FBI and the likes). On older Lumia phone that doesn't have reset protection, a full reset will remove everything, including the logged in MS account, thus make the phone can no longer be tracked. On newer phone, even if the thief reset the phone, they will not be able to bypass security unless they have your MSA credentials.
06-25-2015 09:06 AM