Changing an IMEI number is in many countries and violates the terms of service of mobile networks. Additionally, the Nokia 106 (and similar feature phones) typically requires professional hardware tools or specialized firmware flashing software to alter such core identification data; there is no simple "secret code" that can reliably change an IMEI on modern versions of these devices.
or *#0160# : Often cited for Nokia 105 and 106 models to access IMEI repair menus. nokia 106 v100011 imei change code better
if the phone is legitimate but not working, your service provider can assist with activation or unblocking. Proof of Purchase: Changing an IMEI number is in many countries