SIM900 GSM GPRS module imei number clone

Projects Discussion and Showcase Device Hacking
1

Hi,
Someone deleted the first post without notice.

Is it possible to change the IMEI of SIM900 GSM module?

Thnak you in advance,

2

No, and it would be illegal in most jurisdictions.

3

Can someone explain why it is difficult to change IMEI number of SIM900,
is it written in a memory which can not be overwritten and what is the software in the module
is it upgradable.

4

It is a security measure.