HUAWEI Mobile Connect - PC UI Interface (COM9) Driver

The HUAWEI Mobile Connect – PC UI Interface (COM9) driver allows Windows to recognize the PC UI serial interface exposed by compatible Huawei mobile broadband hardware. It is intended for users whose Huawei modem or data card appears as an unknown device, has a driver warning, or cannot communicate with compatible connection-management software.

Key Features

• Serial interface recognition: Helps Windows identify the Huawei PC UI interface and expose it as a COM port for compatible software.
• Device communication: Supports the communication channel used by Huawei utilities for device management and status information, depending on the hardware and software.
• Legacy Windows support: Intended for compatible installations of Windows 10, 8.1, 7, Vista, and XP, subject to the specific driver package and system architecture.
• Troubleshooting support: Installing the correct package may resolve missing-driver errors or recognition problems affecting this interface. Separate drivers may be needed for other functions of the same modem.

How to Install HUAWEI Mobile Connect – PC UI Interface (COM9) Driver

1. Check your device and Windows version. Open Device Manager and locate the Huawei interface under Ports (COM & LPT) or Other devices. Check its hardware IDs and confirm whether your Windows installation is 32-bit or 64-bit.
2. Select a matching package. Before starting your HUAWEI Mobile Connect – PC UI Interface (COM9) driver download for Windows, verify compatibility with your hardware and operating system. Choose the latest version that explicitly supports your device, rather than assuming every newer release will work.
3. Download and extract the files. Prefer a trusted, manufacturer-provided free download where available. Extract compressed packages before installation, and avoid installers that bundle unrelated software.
4. Install the driver. Run the supplied setup program, or right-click the interface in Device Manager, select Update driver, and browse to the extracted driver folder. Follow the prompts without bypassing security warnings for unverified files.
5. Reconnect and verify. Restart Windows if requested, reconnect the Huawei device, and confirm that the interface appears without a warning icon. Windows may assign a port number other than COM9; select the assigned port in your software if required.

Keep the driver updated when a compatible release addresses a problem or improves device support. For Windows 10/11 systems, check compatibility carefully: Windows 10 is listed here, but Windows 11 support is not confirmed. Before an update, retain a working driver copy so you can roll back if necessary.