Qualcomm HS-USB NMEA (COM4) Driver

The Qualcomm HS-USB NMEA (COM4) driver enables Windows to communicate with the NMEA serial interface exposed by compatible Qualcomm-based USB hardware. Listed under Qualcomm Atheros in the USB category, this device typically provides positioning-related data to compatible GPS or diagnostic applications. You may need this driver if the interface appears as an unknown device, has a warning icon in Device Manager, or cannot be accessed by your software.

Key Features

• Enables recognition of the Qualcomm HS-USB NMEA interface as a virtual serial port, allowing compatible applications to access its data.
• Supports communication with hardware that exposes NMEA positioning output; actual GPS functionality depends on the connected device and its configuration.
• Provides a driver option for Windows 10, 8.1, 7, Vista, and XP, subject to the compatibility of the selected package.
• Helps resolve missing-driver issues that prevent the NMEA interface from working correctly. The COM4 designation is a Windows port assignment and may differ between computers.

How to Install Qualcomm HS-USB NMEA (COM4) Driver

1. Check your Windows version and whether it uses a 32-bit or 64-bit architecture. In Device Manager, inspect the device’s Hardware IDs to confirm that the package matches your hardware.
2. Choose the Qualcomm HS-USB NMEA (COM4) driver download for Windows that matches your system. If a free download is offered, verify its source and digital signature before opening it.
3. Extract the downloaded archive if necessary. Run the supplied installer, or open Device Manager, right-click the affected device, and select the option to update its driver.
4. For manual installation, choose to browse your computer for drivers and select the extracted folder. Follow the prompts to install the matching driver, then restart if requested.
5. Reconnect the hardware and check Device Manager for the NMEA interface, usually under Ports (COM & LPT). Select its assigned COM port in your compatible application.

Keep the driver updated when a compatible release addresses connection problems or improves reliability. Choose the latest version approved for your device rather than assuming every newer package will work. For Windows 10/11 systems, check support carefully: Windows 10 is listed here, but Windows 11 compatibility is not confirmed. Before an update, retain a working driver copy or create a restore point so you can recover if needed.