Huawei USB AT Device (COM56) Driver

The Huawei USB AT Device (COM56) driver helps Windows recognize the AT-command interface on compatible Huawei USB hardware, allowing supported software to communicate with it through a virtual serial port. You may need this driver if Device Manager shows an unrecognized device, the COM56 interface is missing, or your modem management software cannot connect.

Key Features

• AT-command communication: Enables compatible applications to send commands to Huawei hardware for functions such as checking device status or managing modem settings.
• Virtual COM port access: Makes the USB AT interface available as a serial port. COM56 is the Windows-assigned port number and may change after reconnecting or reinstalling the device.
• Windows support: Intended for compatible configurations running Windows 10, 8.1, 7, Vista, or XP. The correct package depends on your hardware model and Windows architecture.
• Device recognition: Provides the interface driver needed for Windows and supported utilities to identify and access the device correctly.

How to Install Huawei USB AT Device (COM56) Driver

1. Check your system and hardware. Confirm your Windows version and whether it is 32-bit or 64-bit. In Device Manager, open the device’s Properties and check its hardware IDs under the Details tab to help verify a match.
2. Choose a compatible package. Before starting your Huawei USB AT Device (COM56) driver download for Windows, review the package’s supported hardware and operating systems. Select the latest version that explicitly supports your configuration. For Windows 10/11 systems, check compatibility carefully: Windows 11 is not included in the supported OS list provided here.
3. Download and extract the files. Use a trusted source for a free download, then extract the archive if necessary. Avoid packages that require unrelated software or ask you to disable security protections.
4. Install the driver. Run the supplied installer, if available. Otherwise, right-click the device in Device Manager, choose Update driver, and browse to the extracted driver folder. Follow the prompts.
5. Verify the connection. Restart Windows if requested, reconnect the hardware, and check for warning icons in Device Manager. Configure your application to use the COM port currently assigned to the Huawei AT interface.

Keep the driver updated when a compatible release addresses connection problems or improves support for your setup. Before you update a working installation, confirm the hardware match and keep a copy of the previous package in case you need to roll back.