Sites like mifitools.com , driverscloud.com , techspot.com/drivers , or various “unlock forums” host the majority of these downloads. Here’s a breakdown of what you actually find:
Some popular MiFi tools and drivers include: mifi tools and drivers download
If you cannot find official drivers, the of your MiFi (accessed via 192.168.0.1 in a browser) often provides all necessary configuration options without any driver installation. Sites like mifitools