Your device manager shows an "Unknown Device" or "ZTE Technologies" without an active COM port.
Having the right driver is the difference between a high-speed mobile connection and an expensive paperweight. Always prioritize drivers from the ZTE Official Site to avoid malware from third-party "driver update" tools. Download - ZTE zte dc general sale driver
If after following this guide the device still does not work, the modem hardware may be faulty, or you may need a model-specific driver (check ZTE’s official support for your exact device model number). Your device manager shows an "Unknown Device" or
: With its built-in security features, the ZTE DC General Sale Driver helps organizations protect their data from unauthorized access and cyber threats, thereby reducing the risk of data breaches. Download - ZTE If after following this guide
USB 3.0 Compatibility: Some older ZTE DC General Sale modules struggle with USB 3.0 or 3.1 ports. If the device isn't recognized, try plugging it into a USB 2.0 port. Security and Performance