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Please select a tutorial to unlock your iPhone 3GS 3.1.

Unlock / iPhone / 3GS / 3.1 / Windows

Posted April 25, 2012 at 3:50am
These are instructions on how to unlock your iPhone 4S, iPhone 4, iPhone 3GS, and iPhone 3G using SAM.
Posted November 28, 2010 at 11:55pm
Instructions on how to unlock the iPhone 4, iPhone 3GS, and iPhone 3G for use with any GSM cellphone carrier using UltraSn0w. This will work with the iOS 4.2.1 firmware on the 06.15.00 baseband.
Posted November 3, 2009 at 11:54pm
Instructions on how to unlock the iPhone 3G and 3GS using BlackSn0w.
Posted November 3, 2009 at 11:54pm
These are instructions on how to jailbreak and unlock your iPhone 3G and 3GS using BlackRa1n and BlackSn0w for Windows.