Premise: the phone is connected to the computer and enters FastBoot Mode.
1、Desktop selection "This PC" choice "Manage" to Computer Management.start Computer Management
2、In Computer Management, Select unknown Android devices in other devices ,Right click "Update driver".
3、Click "Browse my computer for driver software".
4、Click "Let me pick form a list of available drivers on my computer".
5、Choice "Kedacom USB Device" hardware type.
6、Click "Next".
7、Choice "Yes",start installation of driver.
8、Installing drivers...
9、Successfully updated your drivers.
10、View device status.