When a device connects as a "QUSB_BULK_CID" device in the Windows Device Manager, it usually indicates that the device is in an unbootable state, an emergency download state (EDL), or a specialized factory testing mode. 📋 Common Scenarios Requiring the Driver
: Your phone is stuck in Emergency Download Mode (EDL) . This is a low-level state where the primary operating system cannot load, and the hardware is waiting for a specialized image to be flashed directly to the chipset.
When a Qualcomm-based device (like a Pixel, OnePlus, or Samsung phone) encounters a critical system failure or is manually put into a specific hardware state, it enters . In this state, the device presents itself to a Windows PC with the hardware ID USB\VID_05C6&PID_9008 .
Write from userspace:
: Programs like the OnePlus Restore Tool (MSMDownloadTool) or Google's Pixel repair tools.
Once installed, the device should appear as "Qualcomm HS-USB QDLoader 9008 (COMx)".
Search for the latest Qualcomm HS-USB QDLoader 9008 drivers. Trusted sources often include mobile community forums or manufacturer-specific support pages. qusb bulk cid driver
Select .
Select from the category list, then click Next .
If you see a yellow exclamation mark or an "Error Code 52," you may need to disable Driver Signature Enforcement in Windows before installing. Step 3: Reviving Your Device When a device connects as a "QUSB_BULK_CID" device
: If you see this, your device is likely a "paperweight" unless it is still under warranty. You should contact the manufacturer or a professional repair center rather than searching for a driver to "fix" it.
To interact with the device in this state, you must replace the "QUSB_BULK_CID" generic identifier with the official Qualcomm HS-USB QDLoader 9008
Locate or QUSB_BULK (usually listed under Other Devices or Universal Serial Bus controllers ). Right-click the entry and choose Update driver . Click Browse my computer for drivers . When a Qualcomm-based device (like a Pixel, OnePlus,
Help! My Phone is Showing “QUSB_BULK CID” – How to Fix It
The is a specialized USB interface driver primarily utilized by Qualcomm-based mobile chipsets. It facilitates low-level diagnostic communication, firmware flashing, and device recovery between a computer and a mobile device.