While codes can be used to device information, changing the IMEI typically requires professional hardware tools or specific service software, not just a text string typed into the dialer. Official Nokia 1200 Secret Codes
This report addresses the technical feasibility, legality, and security implications of changing the International Mobile Equipment Identity (IMEI) number on a Nokia 1200 device. nokia 1200 imei change code
Dial *#06# on your keypad. This works on almost every GSM phone to display the current identity. While codes can be used to device information,