The following criteria must be met to unlock an AT&T device.
Your AT&T device must have been purchased more than 60 days ago. It can’t be active on another AT&T account.
Your device was paid in full when purchased or paid off through an installment plan. Your installment balance must be zero before unlocking.
Your device hasn't been reported lost, stolen, or involved in fraud.
If you’re a current AT&T customer, your bill cannot be past due. To make a payment, sign in to your account.