Altering or using an IMEI to conceal device identity, avoid blocking, or commit fraud is illegal in many jurisdictions. Only repair or restore IMEIs that you are authorized to modify (e.g., restoring original IMEI on devices you own or have explicit permission to service). Verify local laws before proceeding.

Maui Meta is the proper IMEI repair tool for MT6580. It does not use dialer codes; it directly rewrites the NVRAM.