Just like we provided you with the list of custom IPSW for iPhone 2G and iPhone 3G users, this time we would like to share custom IPSW of firmware 3.1 for iPhone 3GS users as Dev-team seems to have no plans for releasing PwnageTool 3.1.3 for Windows users. You can unlock and Jailbreak your iPhone 3GS with this custom IPSW while preserving your baseband.

Users on Windows don't have to wait for Windows version of PwnageTool or Redsnow, following is step-by-step tutorial/guide will help you to fully unlock and jailbreak iPhone 3GS with Firmware 3.1 on a Windows PC.

Good news for iPhone users who are using Windows. Previously we shared a tutorial through which you can unlock firmware 3.1 using PwnageTool on iPhone 2G and 3G. Dev-team released PwnageTool for Mac users only and now every one is asking for PwnageTool in Windows. So here is a list of custom IPSW for firmware 3.1 on iPhone 2G and iPhone 3G. This Firmware comes with the stock Apple logo and Cydia. After downloading IPSW...