Guide: How to Unlock iPhone 4/ iPhone 3GS on iOS 4.3.3 with Ultrasn0w 1.2.3 [Guide][Older Basebands]

iPhone Dev team has now released Redsn0w and Pwnage Tool to Untethered Jailbreak iOS 4.3.3. And they have also Updated Ultrasn0w to version 1.2.3 this means if you are on 01.59.00 / 04.26.08 / 05.11.07 / 05.12.01 / 05.13.04 / 06.15.00 Baseband, You can unlock your Device.

This is again to Inform you that this Unlock is not for New Basebands, It is for Already Unlockable Basebands such as 01.59.00 / 04.26.08 / 05.11.07 / 05.12.01 / 05.13.04 / 06.15.00.

Important:You have to make sure that your iPhone 3GS running on BB 05.14.02  or 05.15.04 should be Updated to 06.15.00. If it's not then just follow here to do so.

So before starting to Unlock your Device, you have to make sure your Device is Succesfully Jailbroken on iOS 4.3.3. If you haven't yet Jailbroken your Device, You can Follow here to Jailbreak it With Sn0wbreeze(Windows)

Guide: How to Unlock iPhone 4, iPhone 3GS running iOS 4.3.3 with Ultrasn0w 1.2.3, old baseband:

Step 1: First of all Go to "Cydia" then "Manage Tab"

Step 2: Now Go to "Sources" then Click "Edit" and click "Add"

Step 3: Now Write,

http://repo666.ultrasn0w.com

And then click "Add Source"

Step 4: Once the Repo has been added, Just search for "Ultrasn0w" in Cydia and Install it.

Step 5: Click Install, And then Restart your iPhone.

Congratulations, It's Unlocked!

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