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Ultrasn0w Fix for iOS 4.3 to Unlock iPhone 4/3GS Now Available via Sn0wbreeze 2.3b4

As expected, iH8sn0w has just pushed another beta of Sn0wbreeze 2.3 which now incorporates Msft.Guy's Ultrasn0w Fix to unlock iPhone 4 and iPhone 3GS on iOS 4.3. Apart from Ultrasn0w Fix, Sn0wbreeze 2.3b4 comes with a fix for some minor GUI and iBooty bugs.

Sn0wbreeze 2.3b4

Official Changelog of Sn0wbreeze 2.3b4:

  • Ultrasn0w now works for basebands (01.59.00 / 04.26.08 / 05.11.07 / 05.12.01 / 05.13.04 / 06.15.00)
  • Fixed minor GUI + iBooty bugs.

iDevices Supported by Sn0wbreeze 2.3b4:

  • iPhone 4 [Tethered]
  • iPhone 3GS (New Bootrom) [Tethered]
  • iPhone 3GS (Old Bootrom) [Untethered]
  • iPod Touch 4G [Tethered]
  • iPod Touch 3G [Tethered]
  • iPad (1st-Gen) [Tethered]
  • iPad 2 [Not Supported]
  • Apple TV 2G [Not Supported]

Supported Basebands:

  • iPhone OS 3.0 ~ 04.26.08 ~ iPhone 3GS
  • iPhone OS 3.1 ~ 05.11.07 ~ iPhone 3GS
  • iPhone OS 3.1.2 ~ 05.11.07 ~ iPhone 3GS
  • iPhone OS 3.1.3 ~ 05.12.01 ~ iPhone 3GS
  • iOS 4.0 ~ 05.13.04 ~ iPhone 3GS
  • iOS 4.1 ~ 01.59.00 ~ iPhone 4
  • iOS 4.0.1 ~ 05.13.04 ~ iPhone 3GS
  • iOS 4.0.1 ~ 01.59.00 ~ iPhone 4
  • iOS 4.0.2 ~ 05.13.04 ~ iPhone 3GS
  • iOS 4.0.2 ~ 01.59.00 ~ iPhone 4
  • iOS 4.1 ~ 05.14.02 via 06.15.00 ~ iPhone 3GS
  • iOS 4.2 ~ 05.15.04 via 06.15.00 ~ iPhone 3GS
  • iOS 4.2.1 ~ 05.15.04 via 06.15.00 ~ iPhone 3GS

To unlock your iPhone 4 or 3GS with Ultrasn0w, you must jailbreak your iPhone with a custom IPSW created with Sn0wbreeze 2.3b4. Just download Sn0wbreeze 2.3b4 from the link below and use this guide to create iOS 4.3 custom IPSW for your iPhone. Once custom IPSW is restored through iTunes, use this guide to boot your iPhone into a tethered jailbroken state using iBooty software. Last but not the least, use this guide to unlock your iPhone on iOS 4.3 with Ultrasn0w 1.2.

Update#1: As reported by some of our Facebook fans, iPod Touch 4G reboot problem on iOS 4.3 is now fixed in Sn0wbreeze 2.3b4.
Update#2: Download official Ultrasn0w 1.2.1 to unlock iPhone 4/3GS & fix signal-bars issue on iOS 4.3.1.

Download Links:

Download iTunes 10.2.1 for Windows and Mac OS X
Download iOS 4.3 Final for iPhone 4/3GS, iPod Touch 4G/3G and iPad 2/1st-Gen
Download Sn0wbreeze 2.3b4 for iPhone 4/3GS, iPod Touch 4G/3G and iPad

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6 comments
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  •  
    Snoozz5 years, 3 months ago

    Hi i have iPhone 4 , 4.3 with modem version 4.10.01 i succeeded in jailbreaking it. Only problem i have is No signal it cant find network. The phone is simfree what can i do? thanks

    •  
      Pramod5 years, 3 months ago

      Well, that’s odd. Being SIM free, you should be getting a proper signal on your iPhone. Did you try out the iPhone with a different SIM? Switch OFF your 3G as well and see if its still the same. Let us know.

  •  
    Spzjulien5 years, 6 months ago

    Should correct

    iPad 2 [Now Supported]

    To

    iPad 2 [Not Supported]

  •  
    ipad 2 ?5 years, 6 months ago

    Does not work with ipad 2

    •  
      Wolverine5 years, 6 months ago

      There is no official tool available to jailbreak iPad 2 but Comex is already busy in packaging his JailbreakMe 3.0. Read more here.