

Your mobile device must be AT&T network locked.These are the needed requirements to unlock their AT&T mobile phones:

Therefore, only the SIM card of that network carrier can be used in that network-locked phone, which makes it even harder if you traveled or shipped that network-locked phone overseas.ĪT&T is very strict when it comes to the completion of prerequisites before unlocking mobile phones. It is like the consequence that consumers are getting because of the convenience and affordability of buying new phones. Since the network carrier is offering the phone with a promo, they will make a way to ensure that the consumer will finish paying for the phone. For example,Ī certain network carrier sells a brand new high-end phone for minimum cash out. These restriction is being done on phones that are purchased under contracts. The main reason why some phones are being locked is to ensure that the consumer will not change his or her network provider. Network or carrier lock is a restriction that network carriers embed in the system of mobile phones. There may be deep reasons why these network carriers lock phones. Before going on with the different techniques in unlocking network locked phones, we must first know why some phones are being locked by network carriers.
