Iphone 4 4.3 firmware can be unlocked by jailbreaking your device using Snowbreeze 2.3 . Please note that Snowbreeze 2.3 can tethered jailbreak your phone and you will require iBooty to boot your phone every time you turn it off. Follow the tutorial below to Unlock iPhone 4 4.3 on Old Baseband 01.59.00 . This tutorial is not applicable for Iphone 4 02.10.04 – 03.10.01 – 04.10.01.
Steps to Carrier Unlock Iphone 4 4.4 (Old Baseband)
- Download Sn0wbreeze 2.3 and install Cydia by jailbreaking .
- Now launch Cydia and tap on Manage Tab
- Choose Sources option
- Tap Edit button on top right
- Now tap on Add and enter the following URL
- After having added the source search for Ultrasnow 1.2 and tap on Install .
- Your device is now Unlocked .
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