When you purchase your fresh, brand new iPhone from the Apple store or AT&T, you realize the only carrier that you can use is AT&T! Unlocking addresses this unfortunate issue and unlocks the SIM restrictions within your iPhone modem, allowing you to use other carrier services like Sprint, Verizon, etc. Unlocked iPhones also have a better resell value, and the government just recently announced that a jailbreak with unlocking the iPhone is legal, so no worries about that! Below is a list of guides for unlocking your iPhone.
To find which tutorial is right for you, simply check your firmware and baseband version and your iPhone model, then begin following the steps to unlock!
Unlock iPhone iOS 4.0.2
Unlock iPhone 3G
Unlock iPhone 3G iOS 4.0.2 with UltraSn0w
Unlock iPhone iOS 4.0.1
Unlock iPhone iOS 4
Unlock iPhone 4
Unlock iPhone 4 iOS 4 with UltraSn0w
Unlock iPhone 3GS
Unlock iPhone 3GS iOS 4 with UltraSn0w
Unlock iPhone 3.1.3
Unlock iPhone 3GS
Unlock iPhone 3GS OS 3.1.3 with BlackSn0w
Unlock iPhone 3GS OS 3.1.3 with UltraSn0w
Unlock iPhone 3G
Unlock iPhone 3G OS 3.1.3 with BlackSn0w
Unlock iPhone 3G OS 3.1.3 with UltraSn0w
Unlock iPhone 3.1.2
Unlock iPhone 3GS
Unlock iPhone 3GS OS 3.1.2 with BlackSn0w
Unlock iPhone 3GS OS 3.1.2 with UltraSn0w
Unlock iPhone 3G
Unlock iPhone 3G OS 3.1.2 with UltraSn0w
Unlock iPhone 2G
Unlock iPhone 2G OS 3.1.2 with BlackSn0w
Unlock iPhone 3.0
Unlock iPhone 3GS
Unlock iPhone 3GS OS 3.0 with PurpleSn0w
Unlock iPhone 3GS OS 3.0 with UltraSn0w
Unlock iPhone 3G
Unlock iPhone 3G OS 3.0 with PurpleSn0w
Unlock iPhone 3G OS 3.0 with UltraSn0w

