Just like iOS 4.3 and iOS 4.3.1 ultrasn0w is also broken on latest released iOS 4.3.2 firmware and need a fix to work on iOS 4.3.2, so today an iPhone developer DjayB6 has kicked out the new version of “Ultrasn0w fixer for iOS 4.3.2” to make ultrasn0w 1.2.1 compatible on latest firmware to do iPhone 4 and 3GS baseband unlock.

 

So here is a guide how to patch ultrasn0w 1.2.1 to make it compatible on for unlock of basebands on iOS 4.3.2:

Step 1: First of all you have to jailbreak your iPhone 4 or 3GS on the latest iOS 4.3.2 firmware. The currently status of jailbreak on iOS 4.3.2 is limited to tethered boot only.

Note: Don’t use Redsn0w to jailbreak iOS 4.3.2, it will update your baseband and you will never unlock your iPhone

Step 2: After Jailbreaking of your device,  now you can unlock your iPhone basebands using Ultrasn0w Fixer for 4.3.2 on latest iOS 4.3.2 firmware:

  • Launch “Cydia” on your iPhone.
  • Now tap on “Manage” tab on the bottom.
  • Now tap on “Sources” button to add source of ultrasn0w fixer

Step 3: Now for adding source of Ultrasn0w fixer, tap on “Edit” and then on “Add”, you should be prompted to add a URL of source, for more check out the below mentioned screenshot:

Type ” http://djayb6.com ” as a source URL and then tap on “Add Source” button to add this repo on your Cydia.

Wait for a while, Cydia will automatically update your sources by following a series of automated steps.

Step 4: After installation of repo in cydia, do a search for “Ultrasn0w fixer for 4.3.2” in cydia and install it. This will automatically unlock your iPhone baseband, so that you can use any type of carrier on your iPhone.

Now just restart your iPhone, and you should be on unlocked iPhone 4 and 3 running latest iOS 4.3.2 firmware