If you’re anticipating an untethered jailbreak solution for your device running iOS 4.2.1, the bad information is basically that you still need to wait a little. Early, the iphone Dev team has launched a beta edition of redsn0w that sustains the untethered jailbreak for iOS 4.2.1. Even so, as of now, the software is still in beta and not constant for everyone.

Whilst the untethered jailbreak solution is not released yet, the team has lately produced an update of Redsn0w with one-click sustain that tries to get booting up your tethered software as quick as possible. With one-click service, it enables you to use command-line reasons to launch Redsn0w. This will go around some monitors (e.g. select firmware file) and allow you to restore your iphone using the minimal attempt.

One problem with connected jailbreaking is basically that you have to stay away from restarting your apple iphone, and even, stay away from it from not having enough battery. Otherwise, your iphone is going to be failed to start up. You’ll have to connect it to computer system and goes thru section of the jailbreak procedure applying redsn0w as a way to boot it up.

The methods for Microsoft windows and Macintosh are different. So simply select the one which suits you.

For Ms windows Client

1. In the beginning, download Redsn0w 0.9.6rc8 for Windows os and extract the zipped file

2. Install the iOS 4.2.1 firmware file for your i phone item (iPhone 3GS / iphone4).

3. Create a folder named “redsn0w” under “C:” and set all associated files in the folder.

4. Start Windows Explorer and find “C:redsn0w”.

5. Right click to display screen the context menu. Select “New” and pick “Shortcut” to create a new shortcut.

6. When prompted, input the following control in the panel. But please be aware that the single-lined control differs according to your device.

For apple iphone 4:

c:redsn0wredsn0w.exe -j -i c:redsn0wiPhone3,1_4.2.1_8C148_Restore.ipsw

For iPhone 3GS (along with latest bootrom):

c:redsn0wredsn0w.exe -j -i c:redsn0wiPhone2,1_4.2.1_8C148a_Restore.ipsw

For iPhone 3GS (with old bootrom):

c:redsn0wredsn0w.exe -j -o -i c:redsn0wiPhone2,1_4.2.1_8C148a_Restore.ipsw

7. Click “Next” to remain and enter “Boot My iPhone” as the shortcut term. Click “Finish” to create the shortcut.

8. Next double-click on the “Boot My iPhone” shortcut to start Redsn0w.

9. If your shortcut is configured accurately, redsn0w should be launched immediately and it certainly bypasses the “Select firmware” displays. Now you can simply plug-in your tethered iphone and go over the staying processes to boot it up.

By using the one-click method of Redsn0w, it should save you some attempts from recovering your tethered iPhone. Thus next time, when your tethered iPhone has no battery or you’ve unintentionally restarted it, just plug it into computer and launch the shortcut to recover it.

For Mac User

1. In the beginning, install Redsn0w 0.9.6rc8 for Apple computer and extract the zipped file

2. Download the iOS 4.2.1 firmware file for your i phone model (iPhone 3GS / apple iphone 4g).

3. Create a folder named “redsn0w” on Desktop and place all related files in the folder.

4. Start Automator. If you haven’t utilized Automator previously, it’s an utility on Mac Operating-system X that lets you automate an activity. So rather than performing a task again and again , you can simplify to a one click.

5. Pick the “Application” template and click “Choose”.

6. Choose “Utilities” under Library and pull “Run Shell Script” to the right panel.

7. After you properly drag the “Run Shell Script” task, you’ll discover a panel that allows you to fill in the command.

8. Input the upcoming command in the panel as demonstrated in the screen grab. But you should remember that the single-lined control differs in accordance with your item.

For iphone 4:

open ~/Desktop/redsn0w/redsn0w.app -args -j -i ~/Desktop/redsn0w/iPhone3,1_4.2.1_8C148_Restore.ipsw

For iPhone 3GS (with fresh bootrom):

open ~/Desktop/redsn0w/redsn0w.app -args -j -i ~/Desktop/redsn0w/iPhone2,1_4.2.1_8C148a_Restore.ipsw

For iPhone 3GS (with previous bootrom):

open ~/Desktop/redsn0w/redsn0w.app -args -j -o -i ~/Desktop/redsn0w/iPhone2,1_4.2.1_8C148a_Restore.ipsw

9. Click “File” and choose “Save As” to save the automatic application in the same folder. Name the application as “bootupiphone”.

10. Return to the “redsn0w” folder you created in step 3. Just double-click “bootupiphone” symbol to launch Redsn0w.

11. If your “bootupiphone” is configured appropriately, redsn0w should be started easily plus it already bypasses the “Select firmware” screens. Now you can just plug-in your tethered apple iphone and go through the remaining processes to boot it up.