Dev iPhone

Ultrasn0w 1.2.5 to unlock iPhone 4 and iPhone 3GS running iOS 5.0.1 has recently been released. Ultrasn0w 1.2.5 does NOT unlock high basebands. Only basebands mentioned in the post can be unlocked. Ultrasn0w 1.2.5 mainly brings support to iOS 5.0.1.

01.59.00
04.26.08
05.11.07
05.12.01
05.13.04
06.15.00

If your iPhone 4 or iPhone 3GS running on one of the basebands mentioned above, then continue reading.

STEP 1: You’ll need to jailbreak your iPhone 4 or iPhone 3GS running iOS 5.0.1 using Redns0w Guide here.

STEP 2: Once jailbroken, head to Cydia -> Manage -> Sources.

STEP 3: Now tap on Edit -> Add then write down the following repo:http://repo666.ultrasn0w.com.

STEP 4: After adding the repo, search in Cydia for Ultrans0w and you’ll tap on it then hit install on the top right of screen.

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