Finally the iPhone Dev team as promised has updated the Ultrasn0w unlocking tool to unlock all the latest iPhone basebands. The iPhone Dev Team has released Ultrasn0w 0.93 which can unlock 04.26.08, 05.11.07, 05.12.01 and 05.13.04 basebands. So if you have an iPhone with latest 05.13.04 baseband on iOS 4 or 05.12.08 baseband on iPhone OS 3.1.3 then you can use ultrasn0w 0.93 to unlock the baseband. But remember that ultrasn0w 0.93 can unlock iOS 4.0 with baseband 04.26.08, 05.11.07, 05.12.01 and 05.13.04 only if you have got a Jailbroken iPhone 3G or 3GS on 4.0.

Important Points to Note

• UltraSn0w 0.93 can unlock baseband 04.26.08, 05.11.07, 05.12.01 and 05.13.04.
• Updated ultrasn0w can unlock firmware iOS 4 and iPhone OS 3.1.3, 3.1.2, 3.1, 3.0.
• iPhone 3GS and iPod Touch 3G owners (If used Spirit for first Jailbreak) should stay away from iOS4.
• Your iPhone must already be jailbroken.

Procedure to Install Ultrasn0w 0.93

1. Launch Cydia and go to Manage section
2. Now touch on sources and then on edit to add following repo – repo666.ultrasn0w.com
3. Now search for Ultrasn0w 0.93 and click on install