There are several reasons why someone might look for an IMEI change code:
This article will explain what an IMEI is, why Nokia phones do not support "change codes," the legal risks involved, legitimate reasons you might want to change an IMEI (e.g., repair after hardware damage), and the correct professional methods used in service centers. All Nokia Imei Change Code
Most users should stick to these standard codes for maintenance and information, which do not carry the legal risks of altering hardware identifiers. All nokia master codes | RTF - Slideshare There are several reasons why someone might look