The Apple Ipad Iphone Itouch 4.21 untethered jailbreak and unlock for PC and MAC is here!

USE SNOWBREEZE for PC, and read on below for PWNAGE tool for MAC

iH8sn0w, the well-know iPhone jailbreaker has just released Sn0wbreeze 2.2 (aka PwnageTool for Windows), Sn0wbreeaze 2.2 will allow you to jailbreak iOS 4.2.1 by creating custom firmware for Windows. This version is also based on Greenpois0n exploit.

But the question is why do I need to use Sn0breeze while I have a simple tool like Greenpois0n. The main advantage of Sn0wbreeze 2.2 is the capability of preserving baseband with the new feature “Baseband Preservation Mode“, which allows you to jailbreak iOS 4.2.1 and unlock your iPhone 4, 3GS and 3G with the existing version of ultrasn0w.
Sn0wbreeze works similar to pwnage tool (for mac, read on below), so you can jailbreak and preserve your current baseband and enjoy the carrier unlock on latest version of iOS.  Dev team already released unlock solution for baseband up to 5.13.04 with Ultrasn0w

Supported Devices :

  • iPhone 3G / 3G[S] / 4
  • iPod Touch 2G / 3G / 4
  • iPad
  • Apple TV 2

Download Sn0wbreeze 2.2 for Windows
Download iOS 4.2.1 for iPhone, iPad, iPod touch
Download .NET Framework 3.5 (required to run Sn0wbreeze)

Step by step guide goes to techxilla

Step by Step Guide To jailbreak iOS 4.2.1 untethered using Sn0wbreeze 2.2.

1. Launch Snowbreeze 2.2 and click OK to the first message that appears. On Windows Vista and 7 may need to run it in Administrator mode.

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2. At this point the screen will show the credits. Close this window by clicking on “Close Credits”. At this point we have to choose one of three modes available. The first, Baseband Preservation Mode, allows ONLY to preserve the baseband of the iPhone by the update. DO NOT run the jailbreak unlock devices. Same goes for the other two methods which, however, logically, perform the jailbreak.

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3. If you are interested in the jailbreak, not only to preserve the baseband by the update, click on Expert Mode , and then click Browse and find the original 4.2.1 firmware on your device saved to your PC.

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4. Select it by double clicking the left mouse button. Sn0wbreeze verify that the firmware you entered is incorrect.

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5. Once you recognize the firmware loaded the following screen appears (you will see the model of device you want to unlock). Now click again on the blue arrow to proceed.

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6. You will be confronted with a page that will allow you to access different functions.

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Click on General and uncheck the item Activate The iPhone (if your iPhone is Italian, otherwise leave it on).

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All other items are optional and serve to enable the backgrounds, multi-tasking and the battery as a percentage of devices that do not natively support these functions. E ‘can also change the system partition dedicated to programs and install Cydia manually SSH.

7. From the next screen you can add packages and repositories in Cydia and avoid doing it manually using the iPhone at a later time. Finish in this case the changes, click on the blue arrow.

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8. At this point we will return automatically to the Home of Sn0wbreeze 2.2. Then click on Build IPSW and then click Next.

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The program will begin to create the custom firmware based on parameters you set.And you will be asked if you will like playing Pac Man while waiting or not. Your response, however, will not influence the creation of custom firmware.

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That’s it!

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9. Once you are finished you have to put the iPhone into DFU Mode. Sn0wbreeze will show you the steps to follow.

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10. Now iTunes will detect an iPhone in recovery mode. To install the new custom firmware then you have to simultaneously press the SHIFT key on the keyboard and press Restore in iTunes.

11. Now select the custom firmware you created earlier and wait a few minutes so that the recovery process is completed.

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Finished. Now you have your iPhone jailbroken 4.2.1 updated on Ios!

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PWNAGE TOOL FOR MAC GUIDE STARTS HERE

iPhone Dev team just released classic jailbreak method, Pwnage tool. Latest version of pwnage tool supports untethered jailbreak for iPhone3G, iPhone3GS, iPhone4,  iPhone 4 – Verizon, iPod touch 3G, iPod touch 4G, iPad and Apple TV 2G (black). Advantage of pwnage tool over Greenpois0n is it’s baseband preservation ability, pwnage tool preserve your current baseband while updating to latest firmware, so you can enjoy ultrasn0w unlock.

How to Jailbreak iOS 4.2.1 (any iOS device) using PwnageTool 4.2

credit for this mac step by step version goes to gadgetsdna

Requirements:

_____________________________________________________________________________________

Step 1: Launch iTunes 10.1.2 and sync your iPhone with your Mac for backup.

Step 2: Download PwnageTool 4.2 and the original iOS 4.2.1 for your version of iPhone, iPad or iPod touch. Copy all the files to your desktop.

Step 3: Double click to start PwnageTool 4.2. Click Ok, if prompted with a warning. Click to select Expert Mode from the top menu bar and then select your device (iPhone 3GS, 3G or iPhone 4). Click Blue arrow button at the bottom right to continue.

Step 4: Click the Browse for IPSW… button and then select your firmware from the Pwnage folder (refer Step 2).

Step 5: You will be prompted to select one of the option from following window. Select General then click the blue arrow button to continue.

Step 6: Under General settings Check Activate the phone if you are not with an official carrier then click the blue arrow button to continue. If your iPhone is activated on an official carrier (Like AT&T or Verizon), Deselect Activate.

Step 7: Now the Cydia settings window will allows you to create custom packages. Double click any of the packages to select. For example, double click on OpenSSH, it will then appear under Select Packages tab.

Step 8: Click Select Packages Tab and then select OpenSSH as shown in the screen below.

Step 9: You are now ready to begin the pwnage process! Click the Build button to select it then click the Blue arrow button to begin.

Step 10: PwnageTool will now create the custom .ipsw file for your iPhone. You will be prompted to save custom .ipsw firmware file. Save it to the desktop. It might take 10-15 minutes for building custom firmware.

Step 11: Now its time to restore your iPhone to this custom firmware 4.2.1 for your iPhone or iPod touch.

  • Click on your phone icon from the sidebar in iTunes.
  • Press and hold left “alt” button (“Shift” button on Windows) on the keyboard and then click on “Restore” (Not “Update” or “Check for Update”) button in the iTunes
  • Now, release the “Shift” button.

Step 12: iTunes will now prompt you to select the location for your custom firmware 4.2.1 Once your iPhone is successfully in DFU mode.

Step 13: Once In iTunes, hold the Alt/Option key and click Restore.

Step 14: Now select the custom IPSW that was created and click the Choose button. Wait for a while till iTunes installs the new firmware 4.2.1 on your iPhone. After the installation is done, iPhone will reboot automatically. You have now successfully jailbroken iPhone running iOS 4.2.1 keeping baseband preserved.

How to Unlock iPhone 4 4.2.1 iOS using Ultrasn0w [Old Baseband]

If you want to unlock iPhone on iOS 4.2.1, then follow the complete step by step guide posted here to unlock iPhone 4 using Ultrasn0w.

Step 15: The last step is now to restore all your settings, apps, contacts and photos to the newly installed firmware version iOS 4.2.1. Just restorethe backup that you made in Step 1 from iTunes.

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