When a DJI drone or accessory (like the DJI Air Unit) is connected to a computer but fails to be recognized by software like DJI Assistant 2, Windows may display it in the Device Manager as a generic "BULK interface". This typically indicates that the operating system lacks the specific DJI drivers required to communicate with the hardware's internal bridge. Common Symptoms DJI Assistant 2 does not show the connected device.
Video streaming (low-compression or raw feeds)
Large payload data (e.g., LiDAR point clouds or multispectral imagery)
Custom flight control SDK commands (using DJI Mobile SDK or Onboard SDK)
In Device Manager, right-click the device → Update driver → Browse my computer for drivers → Let me pick → Have Disk → point to the folder containing the INF → Install.
Solution:
When the driver is not installed, Windows loads usbstor.sys (mass storage driver) or fails to recognize the device entirely. dji bulk interface driver
Each version installs its own set of bulk interface drivers. Using the wrong version will cause the driver to fail to load because the USB Vendor ID (VID) and Product ID (PID) won’t match. When a DJI drone or accessory (like the
Users on Windows 10 or 11 often face signature enforcement issues. Reinstalling the latest version of DJI Assistant 2 for your specific product (e.g., Consumer, Enterprise, or Ronin series) from the DJI Download Center is the primary solution. Connection Checklist: Video streaming (low-compression or raw feeds) Large payload
Visit the DJI Developer Website: Navigate to the DJI Developer website (https://developer.dji.com/) and log in to your account.
Download the Driver: Click on the "Downloads" tab and select the DJI Bulk Interface Driver package compatible with your operating system (Windows or macOS).
Extract the Package: Extract the downloaded package to a folder on your computer.
Run the Installer: Locate the installer file (usually named "DJI Bulk Interface Driver Installer.exe") and run it as an administrator.
Follow the Installation Wizard: The installation wizard will guide you through the installation process. Follow the on-screen instructions to complete the installation.
Restart Your Computer: Once the installation is complete, restart your computer to ensure the driver is properly loaded.
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