- iPhone 3GS running iOS 4 GM or iPhone OS 3.1.2 (mine was running a jailbroken copy of iOS 4 GM) with old bootrom. 05.13.04 baseband. First, download Pwangetool and the .ipsw firmware file to your ...

In this post we’ll show you how you can easily jailbreak your iPhone (or iPod Touch) running iOS 4.1 using limera1n and install your first Cydia apps on it ... on a virtual machine running Windows 7 ...