http://veryrite.com/2010/11/16/sn0wbreeze-2-1-jailbreak-ios-4-1-on-iphone-4g3g3gs-ipod-touch-4g3g-ios-3-22-on-ipad/
The new version of the jailbreak tool is based on Limera1n’s exploit but the good thing is that you can save your device’s baseband by creating custom firmware for later use with iTunes and keep your carrier unlock.
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