Can You Unlock Iphone For Metro Pcs. Email Address Register Privacy Policy Keep In Touch With Us Mobile Apps Help Feedback MoneyCenter Privacy Answered before 149w They are basically the same with small differences: International unlocked phones are unlocked by a service provider that it was previously locked. When the phone is unlocked, just insert the SIM card and replace it with another SIM card (this SIM card If you wish, you can use a card from another country. To avoid roaming charges, someone purchases a SIM card from a local mobile operator to the destination and write them at the same time keep all existing phone settings but a new number and local call This option is convenient and saves time because you can purchase a new smartphone during a visit there on one can activate the plan you select and complete all necessary formalities. This is in contrast to a locked phone that is attached to a particular phone number mobile phone service provider (or carrier) network with software settings and is usually offered with a contract when someone starts the mobile service.