The International Mobile Equipment Identity (IMEI) for Nokia devices is hard-coded into the hardware and cannot be changed via keypad codes, with *#06# used to view the unique 15-digit identifier. While various codes exist for factory resets and diagnostic checks, attempting to modify the IMEI is illegal and can damage the device. Learn more about checking your warranty via HMD . IMEI Code, what is it used for? - eSIM.sm Blog