Sn0wbreeze

sn0wbreeze is a tool used to create custom IPSWs to restore, similar to PwnageTool. Can be used to jailbreak and unlock when making the custom IPSW. This is a GUI of XPwn for Windows written in C# (previously Visual Basic) and is developed by iH8sn0w. It is released under GPL v3 license, and previous versions source are available on GitHub, however this violates the GPL.

To restore to custom firmwares you will need a version of iTunes <11.1. Now iTunes >11.1 Apple rehashes the all the firmwares.

Versions
sn0wbreeze was first released January 13, 2010 as a beta version. The following versions that are shown here are official, and sorted by compatibility with iOS revisions.

Resources

 * Download sn0wbreeze