1. Find out your carrier's policy on unlocking phones. Verizon, Sprint, AT&T, and T-Mobile have different criteria--though in most cases, you must own the ... 2. Make sure your carrier will unlock your phone. Even if your contract looks like it specifies that they must unlock your phone, calling ahead will ensure ... 3. Purchase a SIM card for your preferred network. You can do so from online or from the network's carrier store. Having the SIM card on hand will allow you to ...
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