Unlock iPhone software works with iPhone versions 2.0, 2.1, 2.2, 2.2.1 including the latest 3G iPhone. Also the current and all previous iPhone firmware versions. Unlock iPhone solutions proliferate the internet, however one solution has proven to be 100% safe and effective in unlocking all iPhones including the latest versions with updated modem baseband 02.30.03 and 2.2.1 firmware. Unlock iPhone Tutorial is a video tutorial on how to unlock virtually any version of the iPhone, so you can use a service provider other than AT&T. Included is a link to iPhone unlocking software in case you don’t want to do anything yourself.
Download the software restore file from Apple. Once the file is downloaded, most browsers may automatically decompress the file and leave a folder called iPhone1,1_1 on your desktop. Download the 1.0.2 firmware to your computer and unzip it. It uses a .ipsw extension but your unzip program should still work. Download that firmware from here . This update can allow you to install the Cydia which helps to run Yellowsn0w after the Jailbreaking is done.
Wait a bit and it should connect. Wait for the slide to unlock screen, then wait 10 or 15 secs more. If you don’t see your carrier name pop up, then remove your SIM, reinsert it, and wait 10 secs more.