How To Unlock iPhone 4-3GS On iOS 5.0.1 With Ultrasn0w 1.2.5 (Guide)

Ultrasn0w 1.2.5 Unlock iPhone 4 and iPhone 3GS running iOS 5.0.1 has been released (Coming early). The problem is Ultrasn0w doesn’t work with high basebands. Just basebands mentioned in the article can be unlocked. Mainly Ultrasn0w support to iOS 5.0.1 Firmware.

Ultrasn0w 1.2.5 Unlocks:
01.59.00
04.26.08
05.11.07
05.12.01
05.13.04
06.15.00

If you have iPhone 4 or iPhone 3GS and running on one of basebands we wrote above, you can continue reading the guide step by step.
Step 1: First you will need to jailbreak your iPhone 4 / 3GS running iOS with our guide talken about Jailbreak tool (Redsn0w 0.9.9 b9).
Step 2: Going to Cydia –>> Manage –>> Sources.

Step 3: Then go to and tap on edit –>> Add and write the following repo: http://repo666.ultrasn0w.com .

Step 4: Ok in Cydia you can search for Ultrasn0w and install it.

Congratulations now you have iPhone 4 or 3GS unlocked.
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