UltraSn0w was updated to version 1.2.7 to support unlocking the iOS 5.1.1 firmware. Although we showed you how to unlock your iPhone 4 or iPhone 3GS already on the iOS 5.1.1 firmware using a hacked together version of UltraSn0w, dubbed UltraSn0w Fixer For 5.1.1, using the official solution is always a better idea as it is more stable and reliable. Thus, in this how to guide we will show you how to unlock your iPhone 4 or iPhone 3GS running the iOS 5.1.1 firmware using UltraSn0w 1.2.7.
UltraSn0w 1.2.7 Supported iPhone Basebands
*In order to see if you have one of the supported basebands on your iPhone 4 or iPhone 3GS you will need to go into the Settings.app > General > About and look for the Modem Firmware field.
Step 1: You must already be running the iOS 5.1.1 firmware on your iPhone 4 or iPhone 3GS, and you must also be Jailbroken on the iOS 5.1.1 firmware. If your iPhone is not Jailbroken please click here.
Step 2: After your iPhone is running the iOS 5.1.1 firmware and is Jailbroken you will need to simply launch Cydia from your SpringBoard.
Step 3: Once Cydia is up and running you will need to go into the Sources page. To go into the Sources page tap Manage followed by Sources.
Step 4: Typically, the UltraSn0w repo is included with Cydia. If not, tap the Edit button followed by the Add button and you will be prompted to add a URL source. Type:
Followed by tapping the Add Source button.
Step 5: Cydia will automatically refresh and update sources.
Step 6: After Cydia is done refreshing sources. Tap the Search tab on the bottom tab bar and search for UltraSn0w. Once UltraSn0w appears, tap on it and you should see version 1.2.7. Read through the description and tap the install button to install UltraSn0w 1.2.7 to your iPhone 4 or iPhone 3GS running the iOS 5.1.1 firmware.
Note: In case you are not familiar with UltraSn0w, it is a software unlock for your iPhone meaning you can use your iPhone with any carrier by simply inserting the SIM card.
Step 7: When UltraSn0w is installed you must restart your iPhone, plug in your unofficial SIM card and wait for your iPhone to connect to your network.
Congratulations! You should now have an unlocked iPhone 4 or iPhone 3GS running the iOS 5.1.1 firmware. If you have any further questions or thoughts please leave them in the comments section below.
Jailbreak iPhone 4S, iPhone 4 first
Perquisites: The first thing you need to do before starting this how to is make sure your iPhone is backed up. As the Absinthe Jailbreaking tool was just released, there is a good chance that you may experience an error Jailbreaking it. Thus, it is always a good idea to make sure all your content on your iPhone is backed up.
Recommendation: It is our personal recommendation and Pod2G’s that you restore your iPhone to factory settings on the iOS 5.1.1 firmware. This will dramatically reduce the chance you have of experiencing an error while Jailbreaking it. This is your call however, and is not necessary 90% of the time.
Step 1) – First things first. You will need to download the latest version of Absinthe 2.0 from the iJailbreak Downloads Section or from the direct download link below. It is always recommend that you check the iJailbreak Download Section, however, to ensure that you are downloading the latest version (we do not always update these guides with the up-to-date versions).
Download Absinthe 2.0 for Mac OS X (10.5, 10.6, 10.7)
Step 2) – With Absinthe 2.0 downloaded you will need to launch the Absinthe Jailbreaking tool, from the directory you downloaded it to (by clicking the Absinthe app shortcut).
Note: If you get a message asking you whether or not you want to open “Absinthe” as it is a downloaded application, click the Open button.
Step 3) – Once Absinthe is running you will need to plug your iPhone into your computer (if you have not done this already). Upon doing this Absinthe should recognize your iPhone, and once this happens you will need to click the Jailbreak button in the middle-right side of the screen.
When you click the Jailbreak button your iPhone will look like it is being officially restored through iTunes; it should say something along the lines of “restore in progress.”
Note: The Jailbreaking process can take anywhere from 5-minutes to 10-minutes so be patient. If you have not restored your iPhone then it could take much longer depending on the amount of content on your iPhone.
Step 4) – Once your iPhone reboots you can slide-to-unlock it and then on your SpringBoard (homescreen) you should notice Cydia. Tap on the Cydia icon and let it prepare its filesystem. Congrats! You have just Jailbroken your iPhone 4S, iPhone 4, iPhone 3GS Untethered running the iOS 5.1.1 firmware with Absinthe 2.0.
Hopefully this how to guide has helped you Jailbreak your iPhone 4S, iPhone 4, iPhone 3GS running the iOS 5.1.1 firmware using Absinthe 2.0 on Mac OS X. If you have any questions or thoughts related to this tutorial please leave them in the comments section.