Here is a basic step-by-step guide on how you can jailbreak your iPhone 3G when its on OS 3.1.2 or OS 3.1.3 (firmware) using redsn0w for Windows. *Keep in mind that if you have already updated your firmware to version 3.1.2 YOU DO NOT NEED TO REUPDATE to 3.1.3. ** The MAC version of this guide is here The Step-By-Step guide can be used to jailbreak your phone before applying the BlackSn0w unlock on your iPhone.
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