iPhone dev-team has pushed ultrasn0w 1.2.3 to unlock iPhone 4 and iPhone 3GS running iOS 4.3.3 on old basebands. check out all compatible basebands with ultrasn0w 1.2.3 after the jump
Tags: iPhone iphone 3gs iPhone 4 unlock
Compatible basebands:
- 01.59.00
- 04.26.08
- 05.11.07
- 05.12.01
- 05.13.04
- 06.15.00
Incompatible basebands :
- 02.10.04
- 03.10.01
- 04.10.01
- 05.14.02
- 05.15.04
- 05.16.02
iPhone 3GS users:
You have to jailbreak your iPhone on 6.15.00 basebands on iOS 4.1 / 4.2.1, you can follow this guide for PwnageTool Mac or this guide for Redsn0w Windows / Mac (You may lose your GPS)
Requirement:
You have to jailbreak your iPhone 4 or iPhone 3GS on the latest iOS 4.3.3, you can follow This Guide (Untethered PwnageTool 4.3.3 for Mac) or This Guide (Untethered Sn0wbreeze 2.7 for Windows)
Step 1: Open Cydia on your iPhone 4 or 3GS, Go to Manage->Sources
Step 2: Now tap on “Editâ€, then tap on “Addâ€
Enter the following repo http://repo666.ultrasn0w.com then tap on “Add Source” as shown below.
Step 3: Now search for ultrasn0w 1.2.3 then install it. By installing ultrasn0w 1.2.3, your device became unlocked
Step 4: Finally, restart your iPhone and you should now enjoy an unlocked iPhone 4 or 3GS on iOS 4.3.3.
![iPod Touch Runs Siri Without A Proxy Server [Video]](http://1.bp.blogspot.com/-rW03Ykj8yJQ/TxbsLlLh2_I/AAAAAAAAAGc/QbFmoTtX5Oo/s320/tumblr_lxz4z5K6cD1r07j7t.jpg)
