How to: Jailbreak iOS 4.3 using Sn0wbreeze 2.3b1 on iPhone 4, 3GS, iPod touch and iPad

iH8sn0w (iPhone hacker and developer) has released an updated version of Sn0wbreeze 4.3b1 which will Jailbreak iOS 4.3 on iPhone 4, iPhone 3GS, iPod touch 4G and 3G and iPad. We have post a detailed guide on how to Jailbreak iOS 4.3 using sn0wbreeze 4.3b1.

It is tethered Jailbreak, means meaning you have to use iBooty to boot into tethered boot mode every time you reboot your iDevice.

Note: MobileSubstrate is broken on iOS 4.3 means alot of Cydia Apps won’t work after Jailbreaking with sn0wbreeze 2.3b1. Ultrasn0w does not support iOS 4.3 firmware version yet. So all those users who rely on unlock should avoid to upgrade their devices to iOS 4.3.

For all those who don’t know Sn0wbreeze for Windows works same  like Pwnage tool for Mac. It creates Custom firmware with preserving Baseband which will help you to Unlock your iPhone via Ultrasn0w (for now Ultrasn0w is broken on iOS 4.3).

How To Jailbreak iOS 4.3 using Sn0wbreeze 2.3b1 on iPhone 4, iPhone 3GS, iPod touch 4G and 3G, and iPad:

1. Download Sn0wbreeze 2.3b1

Step1: Open Sn0wbreeze 2.3b1.

Step 2: Click the blue arrow at the right corner and click yes when ask for “are you seriously want to do this”.

Step 3:Now Drag iOS 4.3 IPSW to box or Browse for iOS 4.3.

Step 5: Now Sn0wbreeze will verify iOS 4.3 firmware. click Arrow next when completed Verifying iOS 4.3.

Step 6: Now select simple mode or expert mode (If you rely in carrier unlock then only proceed for baseband preservation mode, keep in mind in order to unlock you must be on following baseband to make real use of preserve baseband mode).

Step 7: At this stage Sn0wbreeze 2.3b1 will provide options to customize firmware , click on Build IPSW . & Click on blue next arrow to start custom iOS 4.3 firmware building process.

Step 8: now Sn0wbreeze is creating custom firmware of iOS 4.3. It will take couple of minutes.

Step 9: Now after completing custom firmware, Sn0wbreeze 2.3b1 DFU Pwner will ask you to connect your iPhone 4, 3GS to PC & turn it off and put it in DFU mode. Click on Start button & follow on screen instructions on how to enter into DFU Mode.

• Press Home and Power button for 10 Sec.
• Release Power Button while keep holding Home button for 15 Sec.

Step 10: Snw0breeze 2.3b1 will now display message once your iPhone 4, 3GS is in Pwned DFU mode.

Step 11: now open iTunes 10.2.1 and restore your custom iOS 4.3. Press Shift+Restore to restore custom iOS 4.3 firmware on iPhone 4, 3GS.

Now relax and wait iTunes will do the rest for you.iPhone will restart on completion of firmware installation.

How to Boot into Tethered boot mode using iBooty:

In order to boot into Tethered boot mode, you need to use iBooty 2.0 utility which is placed on your desktop by Sn0wbreeze 2.3b1.

Step 1: Open iBooty.exe file, wait for disclaimer to disappear

Step 2: Now select your Device from drop down menu. Click Start and follow on screen instructions on how to put your device in DFU mode.

Step 3: Once Your device is in DFU mode iBooty will start uploading payload and exploiting with greenpois0n.

Step 4: iBooty will display done message upload successful boot. That’s it your jailbroken iPhone on iOS 4.3 will boot into tethered boot mode ready for use.