Really? Att gave me key for network unlock so I would assume its good to go...You can’t unlock your device until your installment plan is paid off. If you pay off your device as part of your monthly bill, wait until the start of your next bill period to unlock it.
Want to pay off your device early? Make sure your number has been active on the device for at least 60 days. Then, sign into your account to review and pay off your installment plan. Wait 48 hours after you make your final payment to submit a new unlock request.