Altering an IMEI is illegal in most countries , including the UK, US, and India, and can lead to heavy fines or imprisonment.
, a classic "feature phone," the IMEI is the sole method of identification used by law enforcement to track recovered property. The Importance of a Mobile Phone IMEI - News nokia 106 v100011 imei change code better
You can always check your current IMEI by dialing *#06# on your keypad. The Legality of Changing IMEI Numbers Altering an IMEI is illegal in most countries
Below is an essay discussing the technical, legal, and ethical landscape of IMEI modification. including the UK