Android Adapter PCUI (COM9) Driver

The Android Adapter PCUI (COM9) driver helps Windows recognize the PC user-interface serial port exposed by compatible Huawei devices connected over USB. You may need it if Device Manager shows an unrecognized interface, reports a driver error, or Huawei software cannot communicate with your connected device.

Key Features

• Enables communication through the Huawei PCUI interface, which compatible device-management or diagnostic software may use.
• Helps Windows identify the interface as a COM port rather than an unknown device. COM9 is the assigned port number and may differ on another computer.
• Supports the PCUI component of compatible Huawei USB connections. Although listed in the Network category, this interface is a serial communication port, not a standalone Wi-Fi or Ethernet adapter.
• Provides driver support for Windows 10, 8.1, 7, Vista, and XP when you select a package compatible with your device and Windows architecture.

How to Install Android Adapter PCUI (COM9) Driver

1. Check your system and device. Confirm your Windows version and whether it is 32-bit or 64-bit. In Device Manager, check the interface’s hardware IDs if you need to verify which Huawei driver package matches.
2. Choose a compatible package. Before starting your Android Adapter PCUI (COM9) driver download for Windows, review the supported devices and operating systems. Select the latest version that explicitly supports your hardware; a newer package is not automatically suitable for every model. For Windows 10/11 systems, note that Windows 11 compatibility is not confirmed by the supported OS list above.
3. Download and prepare the files. Prefer an official Huawei source or a trusted free download with clear compatibility information. Extract the archive if necessary, and scan downloaded files before running them.
4. Install the driver. Run the included installer, or open Device Manager, right-click the affected interface, select Update driver, and browse to the extracted driver folder. Follow the prompts without bypassing Windows security warnings.
5. Reconnect and verify. Restart if prompted, reconnect the Huawei device, and check that its PCUI interface appears without a warning icon. If software expects COM9, confirm the assigned port before connecting.

Keep the driver updated when a compatible update addresses connection problems or improves support for your system. Retain a working installer or create a restore point before changing drivers, so you can recover if the new version causes issues.