This article provides a comprehensive breakdown of the error, its origins in anti-piracy and licensing systems (dongles), and step-by-step solutions to bypass or resolve it.
Sometimes the driver itself is the issue. The tool cannot claim exclusive access to the EDL COM port. This article provides a comprehensive breakdown of the
Not necessarily. Most leaked MSM tools have been patched to bypass the dongle. If you see this error, you either have an unpatched tool or your patched tool is missing runtime components. Not necessarily
If it shows as "QHUSB_BULK," you must manually install the Qualcomm USB Drivers . Power off your phone completely. Press and hold Volume Up + Volume Down simultaneously. If it shows as "QHUSB_BULK," you must manually
: Right-click the MsmDownloadTool.exe and select Run as administrator . Some versions require elevated permissions to initialize the dongle driver.
Once the PC reboots, try running the MSM Download Tool as an . Summary Checklist Install CodeMeter Runtime (the most common fix).