Because "Multistar" is often rebranded or uses universal hardware (like Hisilicon SoC), official downloads are frequently found through distributor portals or general H.264 client software sites:
Updating the firmware on your DVR can fix security vulnerabilities and improve video stability. V4.02.R11 H.264/H.265 DVR/NVR Firmware Download multistar dvr h 264 software upd download
: Most units support Internet Explorer via an ActiveX plugin. You can typically download this directly from the DVR's IP address when you log in through a browser. How to Update Multistar DVR Firmware Because "Multistar" is often rebranded or uses universal