How to Unlock iPhone 4/3GS on iOS 4.3 with Ultrasn0w 1.2 [Tutorial]

March 20th, 2011 Paracha

iH8sn0w today released Sn0wbreeze 2.3b4 to jailbreak iOS 4.3 tethered which is now completely compatible with Ultrasn0w to unlock iPhone 4/3GS on iOS 4.3 with old basebands. This means that now you can unlock iPhone 4/3GS on iOS 4.3 with Ultrasn0w on basebands 01.59.00, 04.26.08, 05.11.07, 05.12.01, 05.13.04, 06.15.00. Follow our tutorial posted below to jailbreak and unlock your iPhone 4/3GS running iOS 4.3.

Sn0wbreeze-2.3b4-iPhone-Unlock

Note for iPhone 3GS Users:

You can update your iPhone 3GS to baseband 06.15.00 and jailbreak it on iOS 4.2.1/4.1 with the help of Redsn0w 0.9.6b5.

Step-1:

Firstly, download Sn0wbreeze 2.3b4 and then Jailbreak your iPhone 4/3GS on iOS 4.3 tethered with Sn0wbreeze 2.3 (The tuorial is the same as described for Sn0wbreeze 2.3b1).

Step-2:

After jailbreaking it, you can unlock your iPhone 4/3GS on basebands listed on the top of this post using Ultrasn0w 1.2.

Step-3:

Launch “Cydia” on your iPhone 4/3GS.

Step-4:

Open “Manage” tab.

Step-5:

Then open “Sources” as shown below;

iPhone 4-3GS Unlock-Ultrasn0w

Step-6:

Open “Edit” & then tap on “Add”.

Step-7:

Put http://repo666.ultrasn0w.com in URL box and touch on “Add source”.

iPhone 4-3GS Unlock-Ultrasn0w

Step-8:

Cydia will automatically update your sources. Just relax and wait for next step patiently.

Step-9:

Now start Cydia, search for “Ultrasn0w 1.2” and install it.

iPhone 4-3GS Unlock-Ultrasn0w

Step-10:

Restart your iPhone 4/3GS to finalize the whole process.

Congratulations! You have done the job successfully. Now you can use your iPhone 4/3GS on iOS 4.3 with any carrier since it has been unlocked.

 

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