However, for the 9008 port to work, your Windows PC must recognize the device with the correct . If the driver is missing, corrupted, or conflicts with existing USB drivers, Windows may show “Unknown USB Device” , “QHSUSB_BULK” , or no reaction at all.
You must use the official Qualcomm HS-USB QDLoader 9008 driver compatible with your operating system (32-bit or 64-bit). oppo vivo usb driver fix 9008