Internet Tethering is a process which allows you to use your iPhone as a wireless modem to share its Internet connection with a computer via USB cable or Bluetooth interface. The iOS for iPhone has this functionality (wired-only) built into the operating system but it is only enabled on selected carriers. Fortunately, there is an app called “MyWi” for jailbroken iPhones which can enable wireless tethering on any carrier you like with just a touch of a finger!
Ok guys.. Mac version of the guide is now up! (Windows version can be found here) The requirements though as mentioned earlier remains the same. You will need a iPhone 3GS (with new bootrom) on iOS 4, which has SHSH blobs saved for iPhone 3.1.2. Some other important notes about the jailbreak are as follows.
When iOS 4 jailbreak first came out, it was only compatible with iPhone 3GS (old bootrom), iPhone 3G and iPod touch 2G (non-MC models). Things were even more trickier for iPhone 3GS. These 3GS devices were not only required to have old bootrom, but they were also required to have previously been pwned or jailbroken on anything (like blackra1n) other than Spirit.
There is a new video going around in the wild which shows iPhone 3GS (with new bootrom) on iOS 4 jaibroken using an upcoming version of Sn0wbreeze. This video has been confirmed by iH8sn0w - the developer behind popular iPhone jailbreak tools such as sn0wbreeze for iPhone 3.1.3 / 4.0, f0recast and BlackBreeze as legit.
The iPhone Dev Team has just updated Redsn0w to version 0.9.5b5-5. Some iPhone users were complaining about MMS and APN issues on their jailbroken iOS 4 devices. Well the good news is that you can now fix this issue with this latest version of Redsn0w. The official change log is as follows.
ToolJail has been just updated to version 2.2. This new version brings updates to jailbreak and unlock guides, and links for jailbreak tools for the newly released iOS 4. For those of you who don’t know, ToolJail (like f0recast) is designed to help iPhone newbie’s to jailbreak and unlock their iPhone and iPod touch. It contains all the necessary jailbreak and unlock instructions, along with how-to’s on DFU and Recovery Mode, downgrading firmware, and direct download links for all the necessary tools required.
Sn0wbreeze 1.6 has been released. This is by the same developer who is behind other popular iPhone jailbreak tools such as sn0wbreeze for iPhone 3.1.3, f0recast and BlackBreeze. Just like the PwnageTool for Mac, Sn0wbreeze 1.6 can jailbreak iPhone 3GS (old bootrom, and already pwned on 3.1.2 with anything other than Spirit), iPhone 3G and iPod touch 2G (non MC model).
The iPhone Dev Team has just updated PwnageTool to version 4.01, bringing fix for iBooks on iPhone which was problematic on pwned and hacktivated iOS devices running iOS 4. Almost everything else remains the same except for this issue, and so it is recommended that you jailbreak your iPhone again if were having issues with the last release of PwnageTool.
iH8sn0w’s Sn0wbreeze 1.6 is almost ready for primetime use. He will release it in a day or two. For those of you who don't know, Sn0wbreeze 1.6 is by the same developer who is behind other popular iPhone jailbreak tools such as sn0wbreeze for iPhone 3.1.3, f0recast and BlackBreeze.
TinyUmbrella has been updated to support the new iOS 4 on iPhone 3GS and iPod touch 2G/3G. iPad is also supported but iOS 4 for iPad isn't available yet. iPhone 3G is not supported because you don't need to save SHSH blobs for iPhone 3G, and older iPod touch (non MC model).
