07-07-2011 04:00 PM
07-08-2011 08:58 AM
The concept of "unlocking" applies to GSM phones, for which your account info is tied to a removable card (the SIM card). "Locked" phones only allow SIMs from the carrier that sold the phone, "unlocked" phones allow any SIM. To use a new phone on a GSM network, you just throw your SIM into the new phone if it is unlocked or locked to the carrier your SIM came from. GSM providers in the United States are AT&T and T-Mobile.
However, Verizon uses a different technology for their network than GSM known as CDMA2000 - In the system Verizon uses, your account details are tied directly to your phone, so getting a new phone activated on the network requires the carrier (Verizon) to program the new phone's serial number into their system. Verizon won't activate Sprint phones on their network, which leaves only phones Verizon themselves sold, which means there is not really any such thing as an unlocked phone for Verizon.