Unlock iPhone 4 iOS 4.0.1 with UltraSn0w Baseband On 01.59.00

This post guide is on how to unlock iPhone 4 with UltraSn0w on iOS 4.0.1/4.0 baseband on 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