How To Unlock iPhone Baseband:

How To Unlock iPhone Baseband:

The iPhone Dev Team announced just recently that they were working hard to release tools to jailbreak and unlock iOS 4 and had warned users who relied on the software method to unlock their iPhone, to avoid upgrading to iOS 4 until they have tested their tools with all relevant devices. The group of hackers just released the latest version of Ultrasn0w, their software to unlock all basebands since iPhone OS 3.0 including baseband 05.13.04 that comes bundled with iOS.



The iPhone Dev Team announced the following via Twitter:

If your jailbroken Phone is running iPhone OS 3.1.3 or earlier, you should be able to install ultrasn0w from Cydia to unlock your iPhone.

Warning:

• If you rely on Jailbreak or unlock then better stay away from iOS 4.0 until Dev-Team releases latest jailbreak and unlock tools for the iOS 4.0 firmware.
• UltraSn0w 0.93 can unlock baseband 04.26.08, baseband 05.11.07, baseband 05.12.01 and latest baseband 05.13.04.
• Can unlock firmware iOS 4.0, 3.1.3, 3.1.2, 3.1, 3.0.
• Your iPhone must be jailbroken.

How To Unlock iPhone Baseband:

1. Launch Cydia.
2. Add the source: repo666.ultrasn0w.com to Cydia. (Make sure the last “o” is actually the number zero “0″.  If you use the letter “o” you will get an error.
3.Search for “ultrasn0w” (with a zero) and install it. (NOTE* T-Mobile USA users please disable 3G before using ultrasn0w)
4. You are done, your iPhone should successfully be unlocked.