answer: WOLD FIRST MTK 6252A USB FLASHING Done [Video]
Analyzing D+ and D-...
D+ = 3, D- = 2
Detection D+/D- with 0.95 seconds!
Analyzing USB device, please wait...
New USB device: (VID_0E8D&PID_0003)
Setting...
>>Set the Pinouts failed,please reconnect and try again!