The iPhone is an incredibly popular smartphone that has changed the way the modern world uses smart phones. Coupled with an impressive selection of software and what some consider the best touchscreen ever made, the iPhone is a superb device. Unfortunately, in the American market, the iPhone is only carried by AT&T. This is not due to hardware limits though; the iPhone works on any GSM network when it is unlocked. Unlocking your iPhone 3G (or 3GS for that matter) can open your phone to almost any other network.
Instructions
1. Download and install blackra1n (see Resources).
2. Plug your iPhone into your computer. Do not sync it with iTunes.
3. Open blackra1n and click "Make it ra1n." Wait for blackra1n to finish jailbreaking your iPhone.
4. Open the "Cydia" app on your iPhone. There will be a list of three applications. Select "sn0w" and then press "Install." Allow your iPhone to install the program.
5. Reboot your iPhone. At this point, your iPhone is unlocked and can accept GSM SIM cards from non AT&T cell providers.
Tags: your iPhone