While the hardware is capped at 150 Mbps (Cat4), updated firmware can improve the efficiency of radio signal use, leading to more consistent real-world speeds.
The safest method is the automated online update through the modem’s web interface: Access the Admin Page zte mf79u firmware link better
to see if a newer official version is available for your specific region and carrier. Common Firmware Issues & Performance While the hardware is capped at 150 Mbps
Before looking for a link, you need to know what software is currently running. zte mf79u firmware link better