[How To] Jailbreak iPhone and iPod Touch on iOS 4 Firmware Using Sn0wbreeze 1.6

Written By Sam on 26 June 2010

If you are a iPhone 3GS or iPhone 3G user and updated your firmware to iOS 4, here is a good news for you. A new version of Sn0wbreeze is released which can be used to jailbreak iPhone 3GS, iPhone3G and iPod Touch 2G on iOS 4.0 firmware. The latest version Sn0wbreeze v1.6.1 can be used to jailbreak iPhone 3G and iPhone 3GS(older bootrom non-MC model).

Sn0wBreeze is available for Windows only. If you are a Mac user you can alternatively download PwnageTool to Jailbreak iPhone 3GS, iPhone 3G and iPod Touch 2G. Below is the procedure to jailbreak iOS 4 on iPhone 3GS, 3G and iPod Touch 2G with Sn0wBreeze while preserving the baseband.

Procedure to Jailbreak iPhone and iPod Touch on iOS 4 Firmware With sn0wbreeze

  • Download iTunes and take a backup of all your data. This will be useful to restore your data back after the unlocking process or even if something goes wrong.
  • Download sn0wbreeze v1.6 for Windows.
  • Also Download the iOS 4[Download iOS 4.0 for iPhone and iPod Touch(Direct Download Links)]
  • Run sn0wbreeze and select the “Simple Mode”. If you are an advanced user then select the “Expert Mode”.
  • You will now be asked to browse for the .ipsw file. Select the iOS 4.0 firmware and sn0wbreeze will verify the ipsw file that you have selected.
  • Once the file is verified you need to click the blue button present on the right bottom. Sn0wbreeze will now ask you “Do you want to activate your iPhone?”. Click “Yes” if you want to hactivate your iPhone or “No” if you are on an official carrier.
  • Sn0wbreeze will now create the custom .ipsw file for your iPhone which will be jailbroken.
  • Once the process is completed you will be shown “sn0wbreeze seems to have successfully created your IPSW, this file will be located on your desktop”.
  • Now you have to restore your iPhone or iPod Touch with the custom iOS 4.0 firmware that you have created with sn0wbreeze v1.6.1
  • Connect your iPhone, and Enter Recovery Mode. Now launch iTunes to restore your iPhone with the custom Firmware built by sn0wbreeze. Hold down SHIFT while clicking the RESTORE button in iTunes.
  • Now browse and select the custom IPSW file that was created and click on “Open”.
  • iTunes will restore the custom firmware and this might take around 10 mins.
  • After that your iPhone will restart automatically and will be jailbroken.

Once you are done with jailbreaking your iPhone you can unlock it to use any SIM card. To unlock your iPhone read the below guides.

Unlock iPhone Basebands 04.26.08, 05.11.07, 05.12.01 and 5.13.04 With Ultrasn0w 0.93
How To Unlock iPhone on iOS 4 With 05.13.04 Baseband Using UltraSn0w 0.93
Procedure To Unlock iPhone 3GS on iOS 4 With 05.13.04 Baseband Using UltraSn0w 0.93

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