Only the person who reported the phone lost or stolen
can unblock the phone but on the flip side is that if it was reported
lost or stolen the phone technically belongs to the insurance company
if a claim was filed.
If no account is associated with a phone, who owns the phone? The person using it or is it still somehow tied to the original owner, even after canceling service?
If it's reported stolen or lost and was replaced by the insurance company
then the insurance company owns it.
If the EIP on the phone hasn't been paid in full then Tmobile would technically still