The story of and the ability to change an iPhone's IMEI is a legendary chapter in the early "cat-and-mouse" era of iOS jailbreaking. Created by the hacker Zibri in early 2008, ZiPhone was a groundbreaking "all-in-one" tool that could jailbreak, activate, and unlock the original iPhone and iPod Touch with a single click. The Rise of ZiPhone

Among its advanced features was the command-line ability to "fake" or change the . How ZiPhone IMEI Change Worked