Uninstall the driver, reboot the computer, and install an older, legacy version of the driver software.

Drivers are low-level software components that allow your Windows, macOS, or Linux computer to communicate with your MiFi device via USB cable. Without the correct driver, your PC will see the MiFi as an "Unknown Device" or simply charge it without enabling data transfer.

Some ISPs lock MiFis to a broad frequency range. Using band-locking tools (like or Hilink mods), you can force the device to use a less congested 4G band.

Disclaimer: This article is for educational purposes. Modifying your MiFi firmware or unlocking a carrier-locked device may violate your terms of service. The author assumes no responsibility for bricked devices or voided warranties.

She clicked “USB Driver for Windows 11” (compatible with her OS). The file was small (~5 MB), so it downloaded in seconds over the MiFi’s 4G signal. She ran the installer, which took less than a minute.

ZTE pocket routers require specific software packages to switch the device out of mass-storage mode into download mode.