This IPCC tethering hack allows you to set up service bundles that aren’t formally signed by way of Apple on the most recent iPhone 3.1.2 firmware. With this, you can connect your iPhone (3G and 3GS only) with your PC or a Mac in a way which enables your PC/Mac to connect to Internet via 3G network on your iPhone.
For those of you who don’t know, Redsn0w is an alternative iOS jailbreaking tool to blackra1n for both Windows and Mac. It also enables users to personalize iPhone firmwares with customized boot and recovery logos without having to use iTunes as there are no custom IPSW files involved.
The best thing about redsn0w 0.9.3 is that it includes this tethering hack by default. You don’t have to do anything manually as you did earlier. Instructions for jailbreaking using redsn0w 0.9.3 are exactly similar to the last release i.e. version 0.9.2 which was released last week. Follow the complete step by step guide posted here to jailbreak your iPhone and iPod touch using redsn0w 0.9.3.
NOTE: Late models of iPhone 3GS, iPod touch 2G and iPod touch 3G are all restricted to “tethered” rebooting. That means you need to connect your device to a computer to complete the boot after a reset. Also, these devices cannot have custom logos.
Download the Original iPhone OS 3.1.2 firmware for iPhone
Download redsn0w 0.9.3 for Windows [Fast Mirror link]
Download redsn0w 0.9.3 for Mac [Fast Mirror link]