Tutorial to unlock iPhone to iOS 3G/3GS with Ultrasn0w 4.2.1

Please note only recommend this tutorial to people who have the iPhone in a drawer for updating and release need to use it, do so at your own risk, modify the baseband, which has no reverse gear and is easily detectable by Apple, plus from now on you will fail every time you want to upgrade to an official firmware, you can only upgrade to custom firmware.

Do not do this process on an iPhone 4 or run the risk of spoiling. SOLO FOR 3G IPHONE 3G

Said this started:

If you have one of the following baseband do not need this process, just install Cydia ultrasn0w:

04.26.08

05.11.07

05.12.01

05.13.04

06.15.00

Only needed if you have:

05.14

05.15

For now it is only for Mac, PwnageTool need 4.1.3, download it here .

(When it is available for Windows update)

Download 3.2.2 IPSW iPad clicking here .

4.2.1 IPSW and your iPhone, download it here .

Open PwnageTool and creates a custom iPhone firmware with baseband iPad (beginning of the iPad IPSW).

Select the firmware 4.2.1 on your iPhone

Click yes.

Select iPad 3.2.2 firmware

Next PUSLE "51 Tutorial to unlock iPhone to iOS Ultrasn0w 3G/3GS with 4.2.1" width = "500" height = "446" />

Click to activate if you have the original sim in your iPhone operator

Click Build and Next

Press NO

Follow the steps to put it in recovery mode.

Once this is done will appear in iTunes that has detected an iPhone in recovery mode, that if we restore it.

Restore with custom firmware that we have prepared by pressing Alt + Restore (Mac)

Once this process, our phone will start with the baseband 15/06/1900

We went into Cydia and installed and ready ultrasn0w, our free iPhone.

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