Ziphone Imei - Change

While discussion of the technical aspects is permissible for research, tampering with an IMEI is illegal in many regions. It interferes with the ability of law enforcement to trace devices, as well as breaking carrier contracts. The "Backdoor" Argument:

ZiPhone IMEI Change: Understanding the Tool, Risks, and Reality ziphone imei change

: Modifying baseband firmware is extremely delicate. A mistake can permanently "brick" the phone, rendering it unable to ever connect to a signal again. While discussion of the technical aspects is permissible

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. such as version 1.1.4.