Last week we reported the release of the iOS 4.3.1 then later on presented a guide on how to do a tethered jailbreak for the iPhone 4 on the iOS 4.3.1. Then we posted a step-by-step guide for iPad owners as iOS 4.3.1 has been jailbroken for these users as well as a guide for the iPod Touch 4G users and iPhone 3GS users (both old and new Bootrom) to get a tethered jailbreak on iOS 4.3.1!
But all of that was for a tethered JB. Today finally Sn0wbreeze 2.5 is released by ih8sn0w that allows to do a untethered jailbreak for all iOS 4.3.1 iDevices on Windows (except iPad 2)! Untether jailbreaking is achieved by using the exploit provided by the Stefan Esser that we reported earlier.
Note 1: If you are on a Mac then follow the instruction in this guide: Untethered Jailbreak iOS 4.3.1 & on iPhone 4, 3GS, iPod touch 3G/4G and iPad using PwnageTool 4.3.
Note 2: If your phone is not dependent on a carrier unlock then we suggest to instead follow the instructions on our guide – Untethered Jailbreak iOS 4.3.1 on iPhone 4, 3GS, iPod touch 3G/4G and iPad using Redsn0w 0.9.6 RC9.
Please make note of the following before proceeding any further:
- iPhone 3GS users can upgrade to 06.15.00 baseband now under Unlocks section in Expert.
- Upgrading your iPhone 3GS baseband to the 06.15.00 iPad baseband hack to unlock MAY cause you to lose your GPS!
- This guide uses the iPhone 3GS as the example but the procedure is the same for all other iDevices.
- This version will not achieve untethered JB for the iPad 2!
- In Sn0wbreeze 2.5 you also have the option to enable the multi-gestures (checked by default) for iOS 4.3.1!
Following devices are supported in this version of the Sn0wbreeze:
- iPhone 3G/3GS/4
- iPod Touch 2G/3G/4
Here is the guide on the usage of the Sn0wbreeze 2.5:
Step 1: Download the Sn0wbreeze 2.5 software.
Step 2: Download stock iOS 4.3.1 FW for your device.
Step 3: Connect your iOS device to the system.
Step 4: Now launch the Sn0wbreeze and you will see a splash screen. There will be a credits dialog that will appear, just close this. Now skip the current screen by pressing the blue arrow at the bottom.
Step 5: Now it will prompt you to select the stock iOS 4.3.1 FW that you have downloaded in the Step 2.
Now browse and select that as shown below:
In case you have iPhone 3GS it will ask to choose the appropriate option. If you are not sure then you can also use the detection mode (see screenshot below).
Now the stock iOS 4.3.1 FW that you provided will be verified.
Step 6: Next it will present you with a choice either to choose a Simple or an Expert mode. Choose the Expert mode here and continue. If you are relying on an unlock use the baseband preservation mode.
Step 7: Now there is an opportunity to customize the FW. So just click on the General and on the blue arrow to continue to the next screen.
Step 8: Now on the screen that appears you have a choice of installing a number of tweaks such as animated bootlogos, openSSH installation, native backgrounding support, user wallpaper and battery percentage etc. After you are done press the blue arrow to continue. Don’t forget to check the activate iPhone option if you are relying on a carrier unlock for your iPhone! In Sn0wbreeze 2.5 from this screen you also have the option to enable the multi-gestures (checked by default)!
Step 9: Now Sn0wbreeze will create the custom FW based on the choices that you made. It takes some time such as 5 to 10 minutes depending upon the computer speed. You don’t need to do anything here.
Once the firmware is ready you will have a Done! message appearing on the screen as show below:
Step 10: Now firmware is ready but you need to put your device in DFU mode. Follow the on screen instructions to do so.
Step 11: Now launch the iTunes and it will tell you that it found a device in recovery mode. Press ok.
Step 12: Now in the iTunes hold down the Shift key and press the Restore button and iTunes will initiate the installation process for the custom iOS 4.3.1 FW that you have just cooked. It will take some time – wait for this.
Step 13: Now finally you are DONE! No need to do any tethered booting anymore!
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