In case the cell phone is short of 12 months on the T-Mobile network, then the account linked to the device must have had more than $100 top-ups since the commencement date of service.The device must have been active for more than 12 months on the network.Requirements To Unlock a Prepaid Device By T-Mobile T-Mobile may require further additional details to show proof of ownership, and some exceptions may apply.If the phone is linked to an annulled account, the balance on the canceled account should reflect nil.In case the phone was bankrolled through Equipment Installment Plan (EIP) or JUMP! On-Demand (JOD) by T-Mobile, it must be fully paid before unlocking lest otherwise stated.If the device acquisition was on a contractual basis, your record must either show 18 consecutive recurrent payments or switch to a no-contract rate plan.The requesting line must have been active on the network at least forty days in the device.Your cell phone, either prepaid or postpaid, must meet all the terms as stated below.The cell phone must be attached to an account with an outstanding compliance record.There should be no outstanding or pending payments or fees for the device.Your records must show that you have not submitted any more than two mobile devices unlock codes request per line of service within twelve months.