Dust in the micro-USB port is a common reason for the "USB Device Not Recognized" error.
Essential for older generic Chinese handsets. all china keypad mobile usb driver download
If the automatic setup fails or your phone connects as an "Unknown Device," use this method: Dust in the micro-USB port is a common
Press or F7 to select "Disable driver signature enforcement." Step 4: Verify Installation Open Device Manager on your PC. all china keypad mobile usb driver download