Huawei USB AT Device (COM59) Driver

The Huawei USB AT Device (COM59) driver allows Windows to communicate with the AT-command interface exposed by compatible Huawei USB hardware, such as certain modems and mobile broadband devices. You may need it if Device Manager shows an unrecognized Huawei interface, a warning icon, or a missing serial port that your connection or diagnostic software requires.

Key Features

• AT-command communication: Provides the serial interface that compatible software uses to send supported commands and read responses from Huawei hardware.
• COM port recognition: Helps Windows identify the USB AT interface as a serial port. COM59 is the assigned port number, not a separate hardware model, and may differ between computers.
• Application access: Enables compatible connection-management and diagnostic tools to access the device’s AT interface; available functions depend on the hardware and software.
• Windows support: Intended for supported configurations of Windows 10, 8.1, 7, Vista, and XP. Choose a package that matches your device and Windows architecture, including 32-bit or 64-bit where applicable.

How to Install Huawei USB AT Device (COM59) Driver

1. Identify your hardware and system. Open Device Manager and locate the Huawei interface, which may appear under Ports (COM & LPT) or Other devices. Check its hardware IDs under Properties > Details, then confirm your Windows version and architecture.
2. Choose a compatible package. Before starting a Huawei USB AT Device (COM59) driver download for Windows, compare the package’s supported hardware and operating systems with your setup. Select the latest version that explicitly supports both. If choosing a free download, use a trusted source and check the publisher information.
3. Extract and install. Unzip the package if necessary. Run its installer if provided, or right-click the interface in Device Manager, select Update Driver, and browse to the extracted driver folder.
4. Reconnect and verify. Follow any restart instructions, reconnect the Huawei device, and check that the interface appears without a warning icon. Configure your application to use the COM port currently shown in Device Manager.

Keep the driver updated when a compatible release addresses connection issues or improves reliability. For Windows 10/11 systems, verify support carefully: Windows 10 is listed here, but Windows 11 compatibility is not confirmed. Avoid forcing an unsupported update, and retain a working driver package in case you need to roll back.