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 andBlackBreeze. 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).
So if you have a Windows machine, you can use Sn0wbreeze 1.6 to create custom firmware files without the upgraded baseband. Again, just like the PwnageTool 4.0 / 4.01, only the following devices are supported.
- iPhone 3G/3GS (old bootrom/already jailbroken with anything other than Spirit)
- iPod Touch 2G (non MC model)
Step 1: Download and install the latest version of iTunes.
Step 2: Now start iTunes and sync your iPhone with your PC so that it backs-up all your important data including settings, apps, music, contacts and photos.
Step 3: Download Sn0wbreeze and the original iOS 4 firmware file for your version of iPhone or iPod touch (download links given below). Move all these files to your desktop.
Step 4: Start Sn0wbreeze and select “Simple Mode”.
Step 5: Sn0wbreeze will now ask you to browse for your .ipsw file. Select the correct iOS 4 firmware .ipsw file by clicking the “Browse” button. Sn0wbreeze will verify the selected file and then will present you with following screen.
Step 6: Click on "Yes" when Sn0wbreeze asks you “Do you want to activate your iPhone?” for hacktivation. Click on “No” only if you are on an officially supported carrier like AT&T.
Step 7: Sn0wbreeze will now create the custom .ipsw file for your iPhone which will be jailbroken.
Step 8: Now you will have to restore your iPhone to this custom firmware 4.0 that you just cooked using Sn0wbreeze for your iPhone. Click on your phone from the sidebar in iTunes and then press and hold left “Shift” button on the keyboard and then click on “Restore” (Not “Update” or “Check for Update”) button in the iTunes and then release the “Shift” button.
This will make iTunes prompt you to select the location for your custom firmware 4.0. Select that custom .ipsw file and click on “Open”.
Step 9: Now sit back and enjoy as iTunes does the rest for you. This will involve a series of automated steps. Be patient at this stage and don’t do anything silly. Just wait while iTunes installs the new iOS 4 on your iPhone. Your iPhone screen at this point will be showing a progress bar indicating installation progress. After the installation is done, iPhone will restart automatically and you should now have a fully jailbroken iPhone running on iOS 4.
How to: Unlock iPhone on iOS 4.0 (Any Baseband): Follow the complete step by step guide posted here to unlock iPhone 3GS and iPhone 3G, on iOS 4, on any baseband using Ultrasn0w 0.93.
Step 10: Once you are done with the unlocking and jailbreak process. You can now restore all your settings, apps, music, contacts and photos to the newly installed iOS 4 by restoring the backup that you made in Step 2 from iTunes.
Feel free to ask me any question here should you run into any problem during the jailbreak process.
Download iTunes 9.2 for Windows and Mac OS X
Download iOS 4 for iPhone 3GS, iPhone 3G and iPod touch
Download .NET Framework 3.5 (required to run Sn0wbreeze)
Download Sn0wbreeze 1.6 / 1.6.1 for 4.0 (Windows Only) [Fast Mirror link]
Disclaimer: This guide is for testing & educational purposes only. Follow it on your own risk. I’m not responsible for any loss of important data or malfunctioning of your iPhone.
UPDATE 1: Sn0wbreeze 1.6.1 is now available. Download Sn0wbreeze 1.6.1 for 4.0 from the updated link given above.
You may also like to check out:
- AppSync 4.0 Now Available for iOS 4.0 Jailbroken Devices
- Fix 1604, 1600 Error During iOS 4 Custom Firmware Restore in Tunes
- Unlocked iPhone 4 Available in UK, France and Canada
- How to Unlock iOS 4 with Ultrasn0w and Blacksn0w on 05.13.04 Baseband
- How to Jailbreak iOS 4.0 on iPhone 3GS, iPhone 3G and iPod touch 2G using Redsn0w, PwnageTool 4.0 (Windows)
Source: redmondpie
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