Sunday, March 20, 2011

How To Unlock iOS 4.3 Using Ultrasn0w After Jailbreaking With Sn0wbreeze 2.3b4

Good news for unlockers! A new version of Sn0wbreeze 2.3 is now available which supports Ultrasn0w unlock for iPhone 4 and 3GS users (old basebands only) running the latest iOS 4.3 firmware.

The following step by step instructions will help you jailbreak and unlock supported iPhone 4 and 3GS running on iOS 4.3. However before we proceed, please make note of the following:

Sn0wbreeze 2.3b4 supports Ultrasn0w unlock for basebands (01.59.00 / 04.26.08 / 05.11.07 / 05.12.01 / 05.13.04 / 06.15.00)
Ultrasn0w is NOT compatible with the following basebands! (02.10.04 / 03.10.01 / 04.10.01 / 05.14.02 / 05.15.04)


Upgrading your iPhone 3GS baseband to the 06.15.00 iPad baseband hack to unlock MAY cause you to lose your GPS!

Sn0wbreeze is a tethered iOS 4.3 jailbreak for iPhone, iPad and iPod touch.
For iPhone 3GS Only: How to Update iPhone 3GS to 06.15.00 Baseband for Unlock:
Ultrasn0w 1.2 unlocking requires that your iPhone 3GS is jailbroken with 06.15.00 baseband. Follow the complete guide posted here (with PwnageTool) or here (for Redsn0w) to update your iPhone 3GS baseband to 06.15.00 and jailbreak it on iOS 4.1 / 4.2.1 before proceeding with the following steps.

Jailbreak Guide

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