How To Unlock iPhone 4/3GS Running iOS 4.3.3 using UltraSn0w 1.2.3
Base-band support: It is advised that this update is the current unlockers so only those users who are still unlockable baseband (01.59.00 / 04.26.08 / 05.11.07 / 05.12.01 / 05.13.04 / 06.15.00).
Not available to open the new iPhone 3G baseband unlock 5:14:02, 5:15:04, 5:15:04, 5:16:01 and 5:16:02 and 2:10:04 baseband iphone 4, 3:10 : 01, 4:10:01.
NOTE: If the iPhone 3G, BB running 5:14:02 or 5:15:04, be sure to open the first update to the baseband 6:15:00 ago.
Optional for those who want to upgrade to iOS 4.3.3: First, you need iPhone 3G, 4, or iOS 4.3.3 jailbreak and preservation of the old baseband, either PwnageTool 4.3.3
Step 1: You can manage your Cydia as the rider, such as the following steps:
Step 2: go to the sources, and then click Edit and add such as:
Step 3: Enter http://repo666.ultrasn0w.com and click on “Add Source”
Step 4: Once the archive has been successfully added to the search query “ultrasn0w” in Cydia and install this application.
Step 5: Click Install. and restart the iPhone! voila! The iPhone is now open.
Once you have completed ultrasn0w 1.2.3, please reboot your iPhone using the normal “slide to power off” swipe. T-Mobile users in the USA must disable 3G mode in Settings->General->Network.