How to Unlock iPhone 4 Baseband 01.59.00 with UltraSn0w 1.0-1

Hackers have liberated Ultrasn0w unlock implement for iPhone 4 baseband 01.59.00. Ultrasn0w 1.0-1 unlock in addition works for iPhone 3G, iPhone 3GS foundation group of players 04.26.08, 05.11.07, 05.12.01, and 05.13.04.
In subsequent you can find the manner to unlock iOS 4.0/4.0.1 on iPhone 4 baseband 01.59.00 through Ultrasn0w 1.0-1, as you can only put on the unlock on jailbroken iPhone 4:

How to Unlock iPhone 4 with UltraSn0w 1.0-1:

Step 1

T-Mobile USA users must disable 3G network before proceeding. So, navigate through Settings > General > Network on your jailbroken iPhone 4 and turn Off Enable 3G

Step 2

Open Cydia

Step 3

Click Manage tab at right bottom of screen and press Sources button in the middle of screen

Step 4

Press Edit button on right upper corner and then hit Add button on top left

Step 5

Enter this URL: http://repo666.ultrasn0w.com and click Add Source button and wait until it completes the process

Step 6

Press Return and then Done button on right upper corner of screen

Step 7

Now, tap on Search tab and search for ultrasn0w and install it

Step 8

The installation process will unlock iPhone 4 iOS 4.0.1, 4.0 with baseband 01.59.00. As installation get complete, reboot your iPhone 4

Step 9

Now, you are free to use SIM card of any carrier with your unlocked iPhone 4

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