GSM phones are designed to work on any carrier's network, provided you insert a SIM with that carrier's network ID. "locked" means that the phone's firmware has been programmed to only accept SIMs a specific carrier's network ID. For example a phone might be locked to T-Mobile. read more
GSM phones are designed to work on any carrier's network, provided you insert a SIM with that carrier's network ID. "locked" means that the phone's firmware has been programmed to only accept SIMs a specific carrier's network ID. read more
Usually network locked phones work only on the specific network to which it has been locked to, CLICK HERE TO SEE MORE http://bit.ly/1Om7J7nThis is because the network service providers enter a specific algorithm or a series of number to the phone's program so that the phone doesn't support any other connection to it. read more