The MT65xx series refers to the 3G and early 4G chipsets from MediaTek. These include:
To flash your device, your PC must recognize this Preloader interface. mt65xx preloader
No power, no USB detection, battery charging not indicated. The MT65xx series refers to the 3G and
Unlike Qualcomm's EDL mode (which stays active forever), the MT65xx Preloader's short timeout is the primary source of user frustration. no USB detection