[How To] Unlocked iPhone 4 iOS 4.3 with Ultrasn0w

I have read on the internet and I found that now you can jailbreak your iPhone 4 with patched PwnageTool Bundles. It is a good news for us when as a iPhone 4 user we can get iOS 4.3 GM on it. For this, I knew that iOS 4.3 GM on iPhone 4 is unlocked to 01.59.00 baseband with PwnageTool Bundles. It is so risky I think, so you can restore your iPhone 4 to a custom iOS 4.3 pre-jailbroken IPSW and upgrade to Baseband 04.10.01 as current baseband.

Now, I found complete steps to unlock your iPhone 4 on iOS 4.3 GM. For important note, you need to jailbreak your iPhone 4 using PwnageTool bundles first then you can unlock iPhone 4 iOS 4.3 GM using Ultrasn0w. Follow the simple steps below:

Step 1. After you jailbroken iPhone 4, run "Cydia" on your old iOS springboard.

Step 2. Choose Manage -> Sources on your iPhone 4 home screen.

Step 3. Choose Edit -> Add, then enter a URL source. You need to type "repo666.ultrasn0w.com" on there and choose on "Add Source".

Step4. After the source added by Cydia on your device, just click on "Return to Cydia".

Step 5. Now, the installation is complete, so what you need to do is search for "ultrasn0w" in Cydia then install it on your jailbroken iPhone 4.

Step 6. Your jailbroken iPhone 4 will automatically unlock and ready to run on 01.59.00 baseband.

Now you are done. Just reboot your iPhone 4 and you can start to use your unlocked iPhone 4 on iOS 4.3 GM. I think it is very easy for you have jailbroken your iPhone device before. Just enjoy your jailbreaking..