Breaking News: iPhone Dev Team Releases Ultrasn0w 1.0-1 To Unlock iPhone 4 [Updated]

Redsn0w 0.9.5 beta for iOS 4 GM

iPhone Dev Team has released Ultrasn0w 1.0-1 to unlock iPhone 4 just as we had expected.

This makes it the world’s first free software solution to unlock iPhone 4. iPhone Dev team had already released Ultrasn0w 0.93 to unlock all basebands since iPhone OS 3.0 including baseband 05.13.04 that comes bundled with iOS 4 for iPhone 3GS and iPhone 3G users.

iPhone Dev Team announced the release of Ultrasn0w for iPhone 4 on their blog:

Version 1.0-1 of ultrasn0w works for:

  • iPhone4 baseband 01.59

  • 3G/3GS basebands 04.26.08, 05.11.07, 05.12.01 and 05.13.04

So if you have jailbroken your iPhone 4 on iOS 4 or iOS 4.0.1 using JailbreakMe then you should be able to install Ultrasn0w from Cydia to unlock your iPhone 4 for free.

Ultrasn0w 1.0-1 can also be installed by iPhone 3G and iPhone 3GS users to unlock their iPhone on iOS 4 or iOS 4.0.1 or earlier (upto iPhone OS 3.0).

Here are the steps that you can follow:

  1. Launch Cydia

  2. Please add the repo to Cydia.  That last “o” is actually the number zero “0”. If you use the letter “o” you’ll get an error.

  3. Then search for ‘ultrasn0w’ in Cydia and install ultrasn0w. This should successfully unlock your iPhone.

  4. T-Mobile USA users should disable 3G before using ultrasn0w.

You can also checkout the video that show you how to unlock iPhone 4:

We have already got confirmations from our readers that they’ve successfully unlocked their iPhone 4.

As always, let us know how it goes. 

Thanks everyone for the tip!

Update: Added the video that shows how to install Ultrasn0w to unlock iPhone 4.