UltraSn0w 1.0-1 is out to unlock for iPhone 4. This guide is on how to unlock iPhone 4 with UltraSn0w on iOS 4.0.1/4.0 baseband 01.59.00. iPhone 4 unlock instructions can be found below.

How to Unlock iPhone 4 with UltraSn0w

***T-Mobile USA users please disable 3G network first.

*** Settings >General >Network and turn the “Enable 3G” switch to OFF.

Assuming that your iPhone 4 is already jailbroken:

* Open the Cydia.
* Go to manage Tab at bottom.
* Hit the big Sources button.

• Hit the Edit button on Top-Right
• Then Hit the Add button on Top-Left
• Then Enter the following URL: http://repo666.ultrasn0w.com and hit the Add Source button.

• Once the Source is added to the Cydia, hit the big return to Cydia button at bottom of the screen and then Done button.
• Go to Search tab and search for ultrasn0w and install it.

Installing UltraSn0w will unlock iPhone 4 iOS 4.0.1, 4.0 with baseband 01.59.00. Once the installation is completed, reboot your iPhone 4.

Voila! You have unlocked iPhone 4 baseband 01.59.00 with UltraSn0w 1.0-1 and can use SIM from any carrier now.

via iphoneheat

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grow, grow ultrasn0w!
We’re happy to tell you that our ultrasn0w carrier unlock now supports the iPhone4!

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
(If ultrasn0w doesn’t show when you search Cydia, add the repo:  repo666.ultrasn0w.com)

@planetbeing @MuscleNerd Thanks Guyz
For comments or questions, please use the comments section below.

From the first Ultrasn0w 1.0-1 screenshot it is clear that it can unlock

iPhone 4 Baseband 01.59.00 and

iPhone 3G/3GS 04.26.08(3.1.1), 05.11.07(3.1.2), 05.12.01(3.1.3) & 05.13.04 (iOS 4.0/4.0.1).

Meaning you will be able to unlock any firmware from 3.1.1 to 4.0.1.

It’s important that you save iPhone 3G/3GS & iPhone 4 4.0.1 SHSH Blobs, since JailbreakMe userland jailbreak will be blocked by Apple with new iOS update any time soon. Via Mobile-Geeks

Ultrasn0w 1.0-1 image was found in Hashim Sherif’s Photobucket album (deleted now).

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iPhone 4 unlocked with UltraSn0w yet again using 2nd way of the three ways Dev-Team has to implement the iPhone 4 unlock exploit. MuscleNerd has shared an unlocked iPhone 4 screenshot. Before this Planetbeing succeeded in implementing the first way of the unlock.

unlock iphone 4

If you don’t know, Planetbeing and MuscleNerd have been working on iPhone 4 unlock for a few weeks now. They found an exploit to unlock iPhone 4 and then come up with 3 ways to take advantage of that loop hole to inject the baseband unlock. Planetbeing had already unlocked iPhone 4 using on of the 3 ways (Demoed here) and now MuscleNerd has implemented the unlock using the 2nd way. They’ll release the one which is more stable, fast and easy.

This is what MuscleNerd has tweeted:

Yay, got the 2nd of 3 ideas working. http://is.gd/dxTwO <- my ultrasn0w’d iPhone4. Now @planetbeing and I can compare

Here’s the screenshot of unlocked iPhone 4 he shared:

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