Imei Repair Code - Mt6580

A: Some custom ROMs (LineageOS, Resurrection Remix) remove Engineer Mode. You must flash back to stock ROM.

A: You likely lost your NVRAM calibration data (RF parameters). Run the CDS information reset in Engineer Mode, or reflash the original modem firmware.

| Code | Function | |------|----------| | *#*#3646633#*#* | Standard MTK Engineer Mode | | *#*#54298#*#* | Engineer Mode (alternate) | | *#*#225#*#* | Engineering Logs |