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Unlock iPhone: Step-by-Step Guide screenshot 1
Unlock iPhone: Step-by-Step Guide screenshot 2
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Description
Unlocking the iPhone allows the use of any SIM card with the device (basically it allows users to switch wireless carriers).
Most iPhones were and still are sold with a SIM lock, which restricts the use of the phone to one particular carrier, a common practice with subsidized GSM phones. Unlike most GSM phones however, the iPhone cannot be officially unlocked by entering a code. The locked/unlocked state is maintained on Apple's servers per IMEI and is set when the iPhone is activated. iPhone unlocking is the latest trend nowadays. People who unlock and jailbreak their iPhone will be able use the phone on any network, and download thousands of free apps, from the Cydia store.

This tutorial will take you through...