HUAWEI Mobile Connect - CDMA Modem Interface (COM12) Driver

The HUAWEI Mobile Connect – CDMA Modem Interface (COM12) driver helps Windows recognize and communicate with the modem interface on a compatible Huawei USB mobile broadband device. It is intended for users setting up a CDMA modem connection or troubleshooting an unrecognized modem, a missing serial interface, or a driver warning in Device Manager.

Key Features

• Modem interface recognition: Enables Windows to identify the Huawei CDMA modem interface so compatible connection software can communicate with it.
• Serial communication support: Provides access through a virtual COM port. COM12 is the port assignment shown for this device; Windows may assign a different number after reconnection or reinstallation.
• USB device integration: Supports the modem component of a compatible Huawei USB device. Other functions, such as network or diagnostic interfaces, may require separate drivers.
• Legacy Windows compatibility: Intended for supported configurations running Windows 10, 8.1, 7, Vista, or XP. Check the package details for your system’s 32-bit or 64-bit architecture.

How to Install HUAWEI Mobile Connect – CDMA Modem Interface (COM12) Driver

1. Check your device and Windows version. Open Device Manager and locate the Huawei modem or unknown USB device. Compare its hardware IDs with those listed in the driver package, and confirm your Windows architecture.
2. Choose a compatible package. Before starting your HUAWEI Mobile Connect – CDMA Modem Interface (COM12) driver download for Windows, verify the supported device models and operating systems. Prefer a trusted Huawei or device-provider source when selecting a free download.
3. Extract and install the driver. If the package includes a setup program, run it and follow its instructions. Otherwise, extract the files to an accessible folder.
4. Use Device Manager if needed. Right-click the device, select Update driver, and choose the option to browse your computer. Point Windows to the extracted folder and complete the installation.
5. Reconnect and verify. Restart if prompted, reconnect the modem, and confirm that Device Manager shows no warning icon. Select the assigned COM port in your connection software if required.

Keep the driver updated when a compatible release addresses connection or recognition problems. Choose the latest version that explicitly supports your hardware rather than assuming every newer package will work. For Windows 10/11 systems, check compatibility carefully: Windows 10 is listed here, but Windows 11 support is not confirmed. A driver update cannot restore service on a retired CDMA network.