Major cellular carriers — Verizon, AT&T, T-Mobile, Sprint, and others — typically lock their networks to the iPhone you buy from their stores or pay for via an installment plan. What does that really ...
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Hackers on Wednesday released a carrier unlock for the iPhone 4, allowing users with "jailbroken" devices to use their handset on carriers not approved by Apple. Dubbed "ultrasn0w," the updated hack ...