Searching for firmware for the (a 4G LTE mobile Wi-Fi hotspot) can be tricky because official downloads are rarely hosted on public consumer sites. Firmware updates for these devices are typically pushed Over-The-Air (OTA) or managed via the device's web interface. How to Update or Reinstall Firmware
If your M028T is stuck with all LEDs blinking or a solid red light, a manual firmware flash (often via TFTP recovery) can bring it back to life. vodafone m028t firmware download