may help to change
Possible errors produced by the SP Flash Tool when flashing devices based on MediaTek processors.
The problem with the port.
It may occur if for example com-ports are disabled in your BIOS (although in this case the com-port is virtual and physical USB, but if you turn off, you simply will not see the hardware on which the preloader drivers are installed). This is either a problem in the USB cable (it helps to change the cable for the firmware), or a problem in the USB port of the computer (it helps to poke the cable into another port). Continue reading