With the release of Redsn0w rc15 and PwnageTool 4.3.3 for iOS 4.3.3 Jailbreak, iPhoen dev team has also released an update version of ultrasn0w to unlock iPhone 4 /3GS basebands on latest released iOS 4.3.3 firmware. This update of ultrasn0w 1.2.3 does not unlock new baseband it just to unlock all the recent unlocked iPhone basebands.
- · Ultrasn0w works for basebands (01.59.00 / 04.26.08 / 05.11.07 / 05.12.01 / 05.13.04 / 06.15.00)
- · Ultrasn0w is NOT compatible with the following basebands! (02.10.04 / 03.10.01 / 04.10.01 / 05.14.02 / 05.15.04)
Step 1: Open Cydia from Springboard and go to manage tab than give a tap on sources to add the ultransn0w repo:
If the source is already added just go into changes and wait for it to Load. when it is done it will show you the updates.
Step 2: Open Ultrasn0w and download it
Once its installed, it will simply ask you to reboot your iPhone, after rebooting process you will surely be on carrier unlocked iPhone 4 /3GS.