1. Download Mediatek Driverand Extract then Install the driver for 32 or 64 bit operating system of windows 7.
2. Before you plug your phone in PC, you need to focus in Device Manager, then plug your phone without the battery you only have approximately 5 seconds to appear MT65xx device that shows under Other devices, you need to right click it as soon as you see it.
Then after you rightclick, click to Update driver software
3. Then choose – Browse my computer for driver software
Browse the Mediatek MT65xx Preloader Driver folder
Make sure you know the version of OS to choose the right driver for your PC.
Choose your OS version, then choose if 32-bit or 64-bit for your PC.
E.G. s Win7 folder:
usb2ser_Win7.inf – if 32-bit
usb2ser_Win764.inf – if 64-bit
4. Another options, to find right driver for your phone is to open your internet while your phone is connected without the battery and automatically searching driver for your phone.Then wait to finish. Now proceed for flashing via SPFT.