Jailbreak iPhone 4S / iPad 2 (untehered) with Absinthe ( Mac & Windows)

You can now jailbreak your iPhone 4S or iPad 2 using the DreamTeam's Absinthe program.

The Absinthe Untethered Jailbreak will support the following devices :

• iPhone 4S running iOS 5.0, 5.0.1 (9A405 and 9A406)
• iPad 2 Wifi/GSM/CDMA running iOS 5.0.1

Step 1: Download Absinthe from here (Mac) or here (Windows), extract it, than run it.
Step 2: Connect your iPhone 4S or iPad 2 to your computer via USB.
Step 3: Click "Jailbreak" to run the program. The process takes awhile in the beginning so don't worry! It will eventually say "Restoring in Progress," leave the device alone until it's completely finished.

Step 4: Once it's done, you should see the Absinthe icon on the Home screen. Tap the icon and it will then take you to the Greenpois0n site and reboot your idevice. After it loads back up, the Cydia icon will have replaced the Absinthe icon.

For those experiencing an "error establishing a database connection," just go to

Settings > Network > VPN > On    
The VPN connection will  give an error and reboot, and after the reboot you will be able to launch the Absinthe app!

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How to Jailbreak Your iPhone Without Updating the Baseband (Windows) [5.0.1]

These are instructions on how to jailbreak your iPhone 3GS or iPhone 4 on iOS 5.0.1 without updating the baseband using RedSn0w for Windows. You may want to do this to preserve an unlock from a lower baseband version.

Please note this jailbreak is tethered for every device but the old bootrom iPhone 3GS which means you will need to connect your device to the computer each time you reboot. 

1.Create a folder on your desktop called Pwnage
Download RedSn0w  and place it in the Pwnage folder. Likewise, download the 5.0.1 firmware from here and place it in the Pwnage folder.

Extract  RedSn0w by double clicking it.

2.Launch the redsn0w application from the redsn0w folder we just extracted.
3.Click to select Extras from the main menu.

4.Click to select Custom IPSW from the Extras menu.

5.Navigate to the Pwnage folder on your desktop and select the IPSW we downloaded then click Open.

If you are using the iPhone 3GS you may be asked to identify whether you are on a newer or older model.

6.RedSn0w will now begin building a custom IPSW for you.

7.You'll be notified once RedSn0w has completed building your IPSW. Click the OK button.

8.Click the Pwned DFU button from the Extras menu.

9.Plug your iPhone into the computer and make sure its OFF then click the Next button

10.RedSn0w will now guide you through the steps to get into DFU mode.

Hold down both the Home button and the Power button for 10 seconds.

Release the Power button and continue holding the Home button until RedSn0w detects the device.

11.RedSn0w will run the LimeRa1n exploit.

12.You'll then be notified that your iPhone is in Pwned DFU mode.

13.Launch iTunes .
14.Select your device from the list on the left then under the Summary tab hold down the Shift key and click the Restore button.

15.You will then be asked to select your IPSW for restore. Navigate to the Pwnage folder on your desktop and select the IPSW that begins with NO_BB then click the Open button.

16.iTunes will now restore and jailbreak your device using the Custom IPSW.

BOOT TETHERED
Once you have jailbroken you will need to rerun redsn0w to boot tethered.

• From the main RedSn0w menu click the Extras button.
• Select Just boot from the Extras menu to just boot tethered.

UNLOCK:
If you have a supported baseband you can now install UltraSn0w to unlock your device. Instructions are here.

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How to Find the Firmware and Baseband Version of Your iPhone

These are instructions on how to find the firmware and baseband version (modem firmware) your iPhone is currently running.

Step One: press to launch Settings from your Springboard.

Step Two: press to select General from the Settings Menu.

Step Three: press to select About from the General Settings Menu.

Step Four: from the about screen you can find your firmware version under the Version label. 

Scroll down and you can find your baseband version under the Modem Firmware label.

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How to Unlock the iPhone 4, 3GS, 3G Using UltraSn0w

These are instructions on how to unlock the iPhone 4, iPhone 3GS, and iPhone 3G for use with any GSM cellphone carrier using UltraSn0w. This will work with the iOS 4.2.1 firmware if you are on the 06.15.00 baseband.

Before you can follow these instructions you must have a jailbroken iPhone and you must be on the 04.26.08, 05.11.07, 05.12.01, 05.13.04, 06.15.00, or 01.59 baseband(modem firmware).

To find your firmware and modem firmware(baseband) versions you can follow this tutorial. 

If you are on T-Mobile remember to turn off 3G before starting...

1.Press to launch Cydia Installer from your SpringBoard.

2.Press to select the Manage tab at the bottom of the screen.

3.Press to select the large Sources button

4.If the ultrasn0w repo is not present press the Edit button at the top right of the screen. Otherwise, skip to Step 9.

5.Press the Add button at the top left of the screen.

6.Enter http://repo666.ultrasn0w.com/ as the source url and press the Add Source button.

7.Once the source has been added press the large Return to Cydia button.

8.Press the Done button at the top right of the screen.

9.Press to select repo666.ultrasn0w.com from the list of user entered sources.

10.Press to select ultrasn0w from the list of packages

11.Press the Install button at the top right of the screen.

12.Press the Confirm button at the top right of the screen.

13.After installation completes successfully press the large Restart Springboard button.

14.You should now be able to insert the SIM of your choice! 

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Jailbreak iOS 5.0.1 Untethered With Redsn0w 0.9.10b3

iPhone-Dev team released an untethered jailbreak for iOS 5.0.1 in the form of redsn0w 0.9.30b1 for Windows and Mac OS . This untethered jailbreak is based on Pod2G’s exploits, he was working on iOS 5.0.1 untethered jailbreak from quite some time now.

• iPhone 4
• iPhone 3GS
• iPod Touch 3G
• iPod Touch 4G
• iPad 1

How To Jailbreak iOS 5.0.1 Untethered With Redsn0w 0.9.10b3:

Note: Before you proceed you should know that this jailbreak does not support iPad 2 and iPhone 4S. 

Things you will need during this process:

• iTunes 10.5.2,
• Redsn0w 0.9.10b3(download redsn0w for mac HERE , download redsnow for windows HERE)Step 1: Connect your iOS device to computer and make a backup all your contacts and phone data .

Step 2: Restore your iPhone, iPad or iPod Touch with iOS 5.0.1

Here are the official download links to iOS 5.0.1:

• iPhone 4S
• iPhone 4 (GSM)
• iPhone 4 (CDMA)
• iPhone 3GS
• iPad 2 WiFi
• iPad 2 GSM
• iPad 2 CDMA
• iPad
• iPod touch 3G
• iPod touch 4G

Warning for unlockers: Restoring a stock IPSW file will update your baseband and you will loose your unlock. If you want to update your device to iOS 5.0.1 with your baseband preserved,follow this tutorial .


Step 3: Launch redsn0w 0.9.10b3 .

Step 4: Click Jailbreak
Step 5: In this step make sure your iPhone, iPad or iPod Touch is completely turned off.

Step 6 : Click Next and follow the instructions on your screen to put your iPhone in DFU mode;

• Hold down both the Home button and the Power button for 10 seconds.
• Release the Power button and continue holding the Home button until (approx 15-25 sec) your device’s screen turn black.

Step 7: Check Install Cydia and click Next

Important: If you’ve already tethered jailbreaked your iOS device on iOS 5.0.1 using redsn0w don’t forget to UNCHECK Install Cydia option. 

Step 8: Redsn0w will exploit your iOS device with limera1n, sit back and relax while redsn0w jailbreaks your iOS device. Once this process is complete you will be notified that RedSn0w is done. When your iPhone, iPad, iPod Touch finishes rebooting (5 minutes or so) it will be jailbroken untethered and running iOS 5.0.1.

That was it guys, you don’t need to boot your device in tethered mode anymore.

Update #2: The b2 version of redsn0w includes the launchctl-related fix by @planetbeing as mentioned by @saurik here and here. As usual, you can just re-run redsn0w in jailbreak mode over your existing 5.0.1 jailbreak (even a PwnageTool one), making sure to de-select “Install Cydia” if you do. Always be sure to do a controlled “slide to power off” shutdown of your device before running redsn0w.

Update #3: The b3 version of redsn0w fixes a problem where re-running redsn0w over an existing jailbreak would cause MobileSubstrate-based apps to stop running until MS was installed again. Now you can re-run the redsn0w jailbreak step without worrying about that (but still remember to de-select the “Install Cydia” option if it’s already installed).
TIP: If auto-detection fails and redsn0w tells you no identifying data was found, you can always pre-select the appropriate 5.0.1 IPSW using “Extras->Select IPSW”.

You can download redsn0w 0.9.10b3 (download for windows and for mac) to jailbreak your iPhone 4, iPhone 3GS, iPod Touch 3G, iPod Touch 4G and iPad 1 on iOS 5.0.1
Update : 

• redsn0w 0.9.10b6 for OS X
• redsn0w 0.9.10b6 for Windows (be sure to run in Administrator mode)

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