: Locate the latest Qualcomm USB drivers from a reputable source like the Qualcomm Software Center or community forums specific to your device (e.g., XDA Forums ).
: For devices like OnePlus or Xiaomi, you can often use an "unbrick tool" (MsmDownloadTool) once the driver is installed to wipe the device and reinstall the factory OS. qusb bulk cid driver
Right-click it and select > Browse my computer for drivers . : Locate the latest Qualcomm USB drivers from
Are you trying to from a bricked device, or are you just looking to reflash the firmware to get it working again? Fix QHSUSB_BULK brick, on the OPO - OnePlus Community on the OPO - OnePlus Community