To understand the necessity of a driver update, one must first define the role of the interface driver. When a ZTE device—such as a 4G LTE modem or a 5G CPE—is connected to a host system (PC or router), it presents itself via a specific interface class. Historically, ZTE modems utilize the USB (Universal Serial Bus) interface.
— Ensure the driver version matches your OS platform (32-bit vs 64-bit). Before installing the new driver, uninstall the original driver completely from Device Manager by right-clicking on it and selecting "Uninstall device". zte at interface driver upd