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    iPhone 4S Can be Unlocked Without Jailbreak, Here’s How To

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    Update: This is an old/outdated method of unlocking the iPhone 4S which was discovered in 2011. Unlocking an iPhone from any carrier is now much easier.

    AT&T won’t unlock your iPhone 4S, but these instructions might. Developer Daniel Scaleb found a bug in iOS 5 that allows you to unlock your AT&T iPhone 4S (GSM). This bug can unlock your iPhone 4S and use it on any other GSM carrier like T-Mobile here in the states.

    The best of this is that it doesn’t requires you to have the iPhone jailbroken, it’s done without any software or hardware modifications. Below are the 16 steps the developer posted in order to unlock the AT&T iPhone 4S; but first you’ll need a GSM iPhone 4S, an AT&T SIM card, and a T-Mobile Micro SIM which can be purchased from Amazon or directly from T-Mobile; you can also cut down your SIM if you currently have a standard non-micro SIM card.

    1. Insert original carrier AT&T SIM card
    2. Dial 611 for the AT&T customer service hotline and drop the call
    3. Turn on Airplane Mode
    4. Take out AT&T SIM card
    5. Insert T-Mobile SIM card
    6. Make sure WiFi is off ( also tap on ‘Forget this Network” to make sure it doesn’t connect automatically later)
    7. Switch off Airplane Mode and iPhone will search for the network. This is followed by the Apple splash screen appearing.
    8. Activation Required will be displayed on the screen
    9. EDGE network will activate automatically – notice the ‘E’ on the top left corner of the screen
    10. Wait for about 20-30 seconds and turn off the phone
    11. Turn on iPhone and the same Activation Required screen will be displayed
    12. When you see one signal bar, tap on Use Cellular Connection
    13. Eject SIM card
    14. The activation Required screen will be shown the second time
    15. Insert SIM card
    16. Unlocked!

    Scaleb stated that you must have a T-Mobile data plan for this to work. He also mentioned that this has a tiny chance of messing up cellular radio by doing this, but it’s improbable. All of this was done using a GSM iPhone 4S and it doesn’t work with CDMA iPhone 4S, according to the developer.

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