For Windows users looking to jailbreak iOS 4.3.1 on iPhone 4, 3GS, iPod touch and iPad; Sn0wbreeze 2.4 is now released. Just as Mac users use the PwnageTool, for all devices, Sn0wbreeze jailbreak is tethered. This means, you will be booting into the jailbroken mode each time your device is rebooted.
Imp Note:
- Ultrasn0w unlock for the following basebands is supported by Sn0wbreeze (01.59.00 / 04.26.08 / 05.11.07 / 05.12.01 / 05.13.04 / 06.15.00)
- The basebands Ultrasn0w is NOT compatible with are as follows (02.10.04 / 03.10.01 / 04.10.01 / 05.14.02 / 05.15.04)
- Users of iPhone 3GS will now be able to upgrade to 06.15.00 baseband, using the Unlocks section in Expert.
- You MAY lose your GPS if you upgrade to the 06.15.00 iPad baseband hack for the purpose of unlocking, from your from iPhone 3GS baseband!
- NO unlock is available for the stock iOS 4.3.1 as of now. If an unlock is needed for your iPhone, make sure you DO NOT update to stock iOS 4.3.1 just yet.
- Sn0wbreeze is a iOS 4.3.1 jailbreak (tethered) for the iPod touch, iPhone, and iPad.
How To Create Custom iOS 4.3.1 Firmware On Windows
STEP #1: Download all the required files and tools to your desktop:
- Sn0wbreeze 2.4 for Windows.
- iTunes 10.2.1 for Windows and install it.
- iOS 4.3.1 for iPad, iPhone, or iPod touch.
STEP #2: First Start Sn0wbreeze. Then you will have to click on the blue arrow in order to go further.
STEP #3: Click on the “Browse” button and select the “firmware .ipsw file” that is required with your iOS device.
STEP #4: The IPSW file will then be identified by Sn0wbreeze. Once that is over, you can proceed further by clicking the next “blue” arrow.
STEP #5: Now you can start creating custom firmware by selecting the “Expert Mode” first and then the “Build IPSW” option.
Imp Note: If an unlock is needed for your iPhone, make sure you DON’T select the “Expert Mode.” Instead, you should SELECT THE “Baseband Preservation Mode” in order to proceed.
It may be easy to build custom firmware, but it does take time. You might as well enjoy a game of Pac-Man while you’re at it.
STEP #6: Once the custom firmware is created successfully, the next message from Sn0wbreeze I going to be “Done!”
STEP #7: Now he DFU mode can be entered using Sn0wbreeze. Follow these steps:
- Press down and hold both the Power and Home buttons for 10 seconds, at the same time,
- Then you can release the Power button but will have to continue holding the Home button.
- With this, the DFU mode is entered by your device.
If you’re done everything as advised and followed each step properly, you will get confirmation mesage on successfully putting the device in DFU mode
Restore iOS 4.3.1 Custom Firmware Using iTunes
STEP #8: First, start iTunes. Then click on the iOS device symbol in iTunes. Now press down and hold the Left “Shift” button on the keyboard. Then click on “Restore” button (DO NOT click on “Update” or “Check for Update”) in iTunes and then release the button.
With this, iTunes will give you the option to choose the location where you want the custom firmware 4.3.1 file to be. Select the custom .ipsw file created by you and “Open” it by clicking on it.
STEP #9: Finally, just sit back and have fun as iTunes handles everything else. Now all you have to do is wait while a few automated steps are taken care of. Be patient and don’t press on anything unnecessarily. Let the iTunes do its job of installing the new firmware 4.3.1 on your iOS device. At this point, your iOS device will show a progress bar, which is an indication that the installation is in progress. Once the installation is complete, you have successfully jailbroken the iOS device on iOS 4.3.1.
How to Boot in Tethered Mode
Finally, it is important to understand that “untethered jailbreak” for iOS 4.3.1 does not exist as of now. It will have to be booted into a jailbroken mode (tethered). This can be done by using the “iBooty” utility on Windows. Here are the steps:
STEP #10: Run iBooty for Windows and using the dropdown menu, choose the iOS device.
Imp Note: Once Sn0wbreeze is run on Windows, iBooty will then be be extracted to the desktop (iBooty-for-4.3.1).
STEP #11: Click the “Start” button and go according to the instructions given on the screen, to get your device into the DFU mode:
- Press and Hold the Power and Home buttons down for 10 seconds
- Then you may release the Power button but you will have to continue to hold the Home button for 10 more seconds
- Your device now entered the DFU mode
STEP #12: Once in the DFU mode, iBooty will take care of the rest. After a little while, your iPhone, iPod touch or iPad will boot in a jailbroken mode (tethered) on the newest version of iOS 4.3.1!
