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how to unlock iphone 4 by using gevey sim


How Do I Unlock My iPhone On The iOS 5 Firmware?



First things first. If you are new to the unlocking scene you are probably wondering how one would go about unlocking their iPhone on the iOS 5 firmware; The answer is simple. You can either use a software unlock called UltraSn0w by the iPhone Dev-Team or a hardware based unlock called Gevey SIM card by Apple n Berry. The difference between a UltraSn0w and the Gevey SIM card, however, is that UltraSn0w only supports a limited number of older basebands while the Gevey SIM card supports a limited number of newer basebands.

Note #1: The Gevey SIM card works with the following iPhone basebands:

    01.59 – 02.10
    03.10.1 – 04.10.1

Note #2: UtraSn0w supports the following iPhone 3GS/iPhone 4 basebands:

    4.26.08
    05.11.07
    05.12.01
    05.13.04
    06.15.00  (Special iPad Baseband)
    01.59.00

If you are looking to unlock your iPhone on the iOS 5 firmware you will need to see which method of unlocking will work with the baseband currently running on your iPhone.

Can I unlock My iPhone 4 with Gevey SIM Card on iOS 5?


As I explained in the intro paragraph, if you have an iPhone 4 that is currently unlocked with a Gevey SIM card, you can unlock your iPhone on the iOS 5 firmware with the same Gevey SIM card as long as you preserve your baseband while updating to the iOS 5 firmware.

How Do I unlock my iPhone 4 on iOS 5 with Gevey SIM card?


If you would like to proceed and unlock your iPhone 4 with a Gevey SIM card on the iOS 5 firmware you will simply need to follow our in-depth guide on updating to the iOS 5 firmware without updating your iPhone 4′s baseband in the process. This is a relatively simple thing to do and involves using RedSn0w. The only downside to this guide is that at this time only RedSn0w 0.9.9b5 can create a custom IPSW to preserve your iPhone 4′s baseband. The reason this is a downside is because RedSn0w 0.9.9b5 is only compatible with the Mac OS X operating system at this time. Meaning if you are a Windows user you will need to use Sn0wBreeze to preserve your iPhone 4′s baseband while updating to the iOS 5 firmware.

   

After following the how to guide shown above you can proceed to setting up your Gevey SIM card on the iOS 5 firmware.

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