Unlock iPhone OS 3.1.3 for 3G & 3GS with blacksn0w
We have previously completed a tutorial regarding how to Jailbreak your iPhone or iPod touch on firmware 3.1.3. Once your iPhone has been Jailbroken, you can now easily Unlock it to use any mobile carrier you want to. Here’s some easy guide to how to Unlock iPhone 3.1.3:









