After jailbreaking you iPhone with Sn0wbreeze for 3.1.3 firmware, you can unlock your iPhone 3G and 3GS with Ultrasn0w (04.26.08 baseband). Here is an easy guide on how to unlock your iPhone 3G and 3GS using ultrasn0w

Step 1:

First you need to jaibreak. Here is the guide to jailbreak iPhone 3.1.3 firmware with Sn0wbreeze

Step 2:
Go to Cydia in your Jailbroken iPhone and tap on “Manage” tab. If you are using T-Mobile then you should first disable 3G and then install ultrasn0w.

%tags

Step 3
Touch on “Sources” and then click Edit

%tags      %tags

Step 4:
Tap on “Add” and a you will be asked to  “Enter Cydia/APT URL”.

Type http://repo666.ultrasn0w.com and tap “Add Source”

%tags 

Step 5:
It will download packages required add the repository for installing ultrasn0w.

Step 6:
Once it’s done, search for ultrasn0w in Cydia

%tags

The latest version is 0.92, installing this will unlock your iPhone 3G and 3GS with 3.1.3 firmware.

Step 7
Restart your iPhone and you are done!

Like this article? Subscribe to our feeds for more interesting and original technology updates. Click here to get updates via email. You can also join our Facebook fan page