MT6580 devices—typically budget-friendly 3G smartphones—often encounter IMEI issues after a factory reset, firmware update, or custom ROM installation. When your device shows "Invalid IMEI" or "IMEI Null," it loses the ability to connect to cellular networks.
Solution via ADB + Root (most reliable): mt6580 imei repair code
For devices using the MT6580 MediaTek chipset, repairing an "Invalid IMEI" or a lost IMEI after a firmware flash typically involves using the Engineer Mode menu or specialized software tools. Common Methods for IMEI Repair Power off your phone completely
command in the CDS Information menu. If this method fails, alternative PC-based tools like SN Writer or Maui Meta can be utilized to repair the device's NVRAM. For a detailed tutorial on this process, visit command in the CDS Information menu
Repairing or restoring an IMEI on MT6580 devices generally involves using AT Commands within the device's built-in Engineer Mode