iPhone Dev-Team has released ultrasn0w 1.2.2 unlock to support iOS 4.3.2 unlock on old basebands and to fix signal issues which reported by some users after jailbreaking iPhone 4, 3GS on iOS 4.3.2
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iPhone Dev-Team has released ultrasn0w 1.2.1 unlock to support iOS 4.3.1 unlock on old basebands and to fix signal issues which reported by some users after jailbreaking iPhone 4, 3GS on iOS 4.3.1

You can follow iPhoneRock on Twitter or join our Facebook fan page to keep updated on the latest jailbreak and unlock news.
sn0wbreeze 2.5 released by iH8sn0w can now be used to carry out iOS 4.3.1 untethered jailbreak by creating custom firmware. Sn0wbreeze 2.5 allows you to preserver your unlockable baseband to be unlock with ultrasn0w. The guide below will help you to Jailbreak any iOS 4.3.1 device and How to unlock and fix Ultrasn0w on iOS 4.3.1 .

You can follow iPhoneRock on Twitter or join our Facebook fan page to keep updated on the latest jailbreak and unlock news.
update
Today Greenpois0n released for windows. I know there is somebody have Have hackvision or lock iPhone and want iOS 4.2.1 untethered jailbreak. There is the solution.

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