MT6580 imei repair error..

1. Make sure device is powered off. Power off, if need. Wait 20 seconds after
2. Insert USB cable in phone
Waiting for device connection ...

PTFN : MediaTek PreLoader USB VCOM (Android) (COM103)
MODE : PRELOADER PORT
PORT : 103
Waiting BOOT ack ...
PRELOADER : ACK confirm FAIL!
BROM : Init BROM
BROM init passed!
CHIP : MT6580 , SBID : 0x8A00 , HWVR : 0xCA00 , SWVR : 0x0000
TYPE : LEGACY MTK

Info : Device is not supported yet!

Reconnect Power/Cable!