KYOCERA USB Modem Diagnostic Serial Port (WDM) (COM310) Driver

The KYOCERA USB Modem Diagnostic Serial Port (WDM) (COM310) driver enables Windows to recognize and communicate with the diagnostic serial interface of a compatible KYOCERA USB modem. It is intended for users who need this interface for supported diagnostic tools, device servicing, or resolving an unrecognized modem port in Device Manager.

Before choosing a KYOCERA USB Modem Diagnostic Serial Port (WDM) (COM310) driver download for Windows, check your device’s hardware IDs and operating system architecture. The supplied device listing identifies Qualcomm Atheros as the vendor and lists Windows 10, 8.1, 7, Vista, and XP as supported systems; individual packages may support only some of these versions. If you are comparing Windows 10/11 compatibility, note that Windows 11 is not included in the supplied support list.

Key Features

• Enables diagnostic serial communication between compatible KYOCERA modem hardware and Windows applications designed to access that interface.
• Supports recognition of the modem’s WDM diagnostic port, helping compatible software locate the device through its assigned COM port.
• Can address a missing-driver warning when the installed package matches the device’s hardware IDs and Windows version.
• Provides the diagnostic interface driver rather than a general-purpose internet connection utility; other modem functions may require separate components.

How to Install KYOCERA USB Modem Diagnostic Serial Port (WDM) (COM310) Driver

1. Connect the modem and open Device Manager. Locate the diagnostic port or unknown device, then check Properties > Details > Hardware Ids to confirm the hardware match. COM310 is a port assignment, not a unique hardware identifier.
2. Choose a compatible package for your Windows version and 32-bit or 64-bit system. Look for the latest version validated for your hardware, and verify the source before using any free download.
3. Extract the downloaded archive if necessary. Run the included installer, or right-click the device in Device Manager and select Update driver to browse to the extracted driver folder.
4. Follow the prompts to install the driver. Do not bypass driver-signature warnings without verifying the package’s authenticity and compatibility.
5. Restart Windows if requested, reconnect the modem, and confirm that the diagnostic port appears without a warning icon. Check its assigned COM number before configuring diagnostic software.

Keep the driver updated when a compatible release addresses a problem or improves support for your system. Before an update, retain the working package or create a restore point so you can recover if the replacement causes issues.