"Qualcomm USB Driver v1.0.exe" is a generic filename. Because it is a legacy file, it is often hosted on third-party file-hosting sites (Mediafire, Mega, etc.) rather than an official direct download page from Qualcomm (who now pushes newer "Qualcomm USB Driver" packages).
Corrupt download or incomplete extraction. Solution: Re-download qualcomm usb driver v1.0.exe from a trusted source. Clear your browser cache before downloading. qualcomm usb driver v1.0.exe
Because this specific filename is frequently used to bundle malware on third-party "GSM" or "cracking" forums, you should avoid it. Instead, obtain official drivers from reputable sources: "Qualcomm USB Driver v1
Advanced users and repair shops use tools like to read/write NV memory. Without this driver, the COM port will not appear. Solution: Re-download qualcomm usb driver v1
Some unofficial FRP tools require direct access to the Qualcomm diagnostic port, which again relies on this driver.