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UltraSn0w Unlock for iPhone 4.3.2 Released

Following the release of the updated PwnageTool 4.3.2 jailbreak tool, the iPhone Dev Team has also pushed out an update to the UltraSn0w unlock in Cydia.

UltraSn0w 1.2.2 has been released to support the new iOS 4.3.2 firmware, as the previous version of UltraSn0w (1.2.1) was broken in iOS 4.3.2. Please note, this will only work for the older iPhone 4 baseband 1.59.00, and iPhone 3G/3GS  basebands 4.26.08, 5.11.07, 5.12.01, 5.13.04, and 6.15.00. It can not unlock newer basebands since there is currently no unlock available.

The Dev Team has provided the following information on their blog…

“Note that there’s a corresponding update to ultrasn0w, which has been bumped up to v1.2.2 to get along with iOS 4.3.2 (the ultrasn0w update does not include any new baseband support!). Please reboot your iPhone using the normal “slide to power off” swipe after installing ultrasn0w 1.2.2.”

Ultrasn0w Updated with iOS 4.3.1 Support

The Dev-Team has updated ultrasn0w to version 1.2.1, which brings unlocking support to iOS 4.3.1. Please note that this is not a new ultrasn0w, but rather an update to bring 4.3.1 compatibility to existing unlockers. Users will need to use either PwnageTool or sn0wbreeze to cook an IPSW with a preserved baseband (01.59.00, 04.26.08, 05.11.07, 05.12.01, 05.13.04 or 06.15.00). This update also fixes the signal bar issue for users who are on older basebands.

Ultrasn0w can be found on Cydia under the repository.

We’ve pushed out the 4.3.1 compatibility fix for ultrasn0w in Cydia — it’s now at version 1.2.1. If you’re not already at 4.3.1 and you need the unlock, please be sure you understand how to get to 4.3.1 using a custom IPSW that doesn’t update your baseband. There are lots of guides for this (like at

This isn’t a new unlock! It’s to allow those who are already using ultrasn0w to use FW 4.3.1. It also fixes the signal bar issue for those who aren’t using the unlock but retain an older baseband intentionally.

UltraSn0w Update is Almost Ready for iOS 4.3.1, Fixes Bug Issues and Older Baseband Compatibility


MuscleNerd has confirmed that UltraSn0w update is coming for iOS 4.3.1 in a few days. The unlock tool has had several bugs and is currently incompatible with several older basebands.

To clarify: the upcoming UltraSn0w update will not unlock any new basebands. The update is meant for current unlockers that wish to update to the latest 4.3.1 jailbreak and keep their unlock.

As we previously mentioned, the new version of UltraSn0w will fix all compatibility issues with the latest version of iOS.


As MuscleNerd mentions, the signal bar bugs, etc. have been fixed and are currently being tested to ensure stability. The UltraSn0w update will soon be available in Cydia for current unlockers.

If you rely on an unlock for your iPhone, hold off on updating your jailbreak to 4.3.1 until UltraSn0w is made compatible with your baseband. If you have a new iPhone 4 (Verizon iPhone included) and have never unlocked your device, you still won’t be able to do so with this UltraSn0w update.

JailbreakMovies explains how the update will work,

“Just a note that for those of you experiencing the issue even with a baseband version that doesn’t qualify for an unlock, you can still use this version of UltraSnow, as it will skip the unlock, and just fix the signal bar issue.”

Unlockers must use PwnageTool to jailbreak iOS 4.3.1 and preserve their baseband for the updated unlock. Check out our tutorial on jailbreaking with PwnageTool. You can also use Sn0wBreeze on Windows to preserve your baseband.

We’ll keep you posted on when UltraSn0w’s update goes live in Cydia. Let us know if you have any issues with your unlock below!

Ultrasn0w 1.3 – Ultrasn0w Unlock 4.3.1 [News]

After we posted Unlock 2.10.04 / 3.10.01 News ! Today MuscleNerd has just announced on his twitter account that he’s going to release a new ultrasn0w today along with the untethered jailbreak on iOS 4.3.1.

BTW ultrasn0w needs an update for 4.3.1, so unlockers should wait until that gets pushed out.

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