To change the IMEI on an iPhone using ZiPhone, you must use specific command-line parameters while the device is in recovery mode. Please note that changing a device's IMEI is and can lead to permanent device instability or network blacklisting. Requirements
Ziphone was designed for the original iPhone (iPhone 2G) and the iPhone 3G running early versions of iOS (then called iPhone OS), such as version 1.1.4. ziphone imei change
(such as the UK and parts of the EU) and can lead to the device being blacklisted by cellular networks. This information is for educational or recovery purposes only. Proceed at your own risk; improper use of ZiPhone can "brick" or permanently damage your device's baseband. ZiPhone IMEI Modification Guide Overview illegal in many jurisdictions To change the IMEI
The term is a relic of the early iPhone hacking era—a time when the device was less secure and baseband exploits were plentiful. Today, it represents a dangerous combination of malware-ridden downloads, legal liability, and technical impossibility. Presented at: Black Hat USA 2009 (and subsequently