ZTE MF667 ATExt Port (COM15) Driver

The ZTE MF667 ATExt Port (COM15) driver helps Windows recognize the modem’s USB-based AT command interface, allowing compatible software to communicate with the device through a virtual serial port. It is useful if your ZTE MF667 appears as an unknown device, shows a warning in Device Manager, or cannot be detected by modem-management software.

Key Features

• Enables communication with the MF667’s AT command port for supported modem-control and diagnostic tasks.
• Provides the USB-to-serial interface needed for compatible applications to access the assigned COM port.
• Supports installation on Windows 10, 8.1, 7, Vista, and XP when you select a package matching your operating system and architecture.
• Helps resolve missing-driver recognition problems after a Windows reinstall or a change to your USB setup.

How to Install ZTE MF667 ATExt Port (COM15) Driver

1. Check your Windows version and whether your system is 32-bit or 64-bit. In Device Manager, inspect the device’s hardware IDs if you need to confirm that the driver package matches your modem.
2. Choose a trusted ZTE MF667 ATExt Port (COM15) driver download for Windows. Before using a free download, verify its source and compatibility; the latest version available is not necessarily suitable for every older Windows release.
3. Extract the downloaded archive if necessary. If the package includes a setup program, run it and follow its connection instructions. Otherwise, connect the modem and open Device Manager.
4. For manual installation, right-click the affected device, select Update driver or the equivalent option in your Windows version, and browse to the extracted driver folder. Allow Windows to install the matching driver.
5. Restart if prompted, then check Device Manager for the AT extension port without a warning icon. Windows may assign a number other than COM15; select the actual assigned port in your compatible modem software.

Keep the driver updated when a verified release addresses a problem or improves compatibility, rather than replacing a working installation unnecessarily. For Windows 10/11 systems, check support carefully: Windows 10 is listed for this device, but Windows 11 compatibility is not confirmed here. Before an update, retain a copy of your working driver so you can restore it if needed.