How to Break an iPhone
The Apple iPhone comes locked so that it can only be used with applications purchased through the Apple Application Store. Unlocking or "jailbreaking" an Apple iPhone can allow it to use third-party applications available from unlicensed sources and use SIM cards from different networks. This is a legal procedure that is available from a number of different operators online. All iPhones can be unlocked, including the iPhone 2G, iPhone 3G, iPhone 3GS and iPhone 4.
Unlock Apple iPhone
Navigate to the Unlock Apple iPhone website (see "Resources").
Click on the red Apple logo to buy the unlock software.
Click the link "Click here to order now" and complete the payment for the unlocking software. Do not close your browser. Upon completion of the transaction, you will be redirected.
Follow the guide laid out by the unlocking software to unlock your iPhone. Make sure that you select the correct model of iPhone to unlock, as unlocking software differs between iPhone 2G, 3G, 3GS and 4.
Unlock the iPhone
Navigate to the Unlock the iPhone website (see "Resources").
Click on the "Buy Now" logo. Select from the "Standard" package, the "Special" package or the "Elite" package, depending on if you want extra applications and downloads for your unlocked iPhone.
Complete the payment process and click on the "Secure Payment" button. The software will download. Open the download software and follow the guide to unlock your iPhone.
Navigate to the Unlock iPhone website (see "Resources").
Scroll down the page. Click on the "Buy Now" PayPal link. Complete the payment process to begin the software download.
Open the unlock software. Follow the step-by-step guidelines to unlock your iPhone.