Finding a legitimate firmware update for "xvr1b04hi" is difficult because the manufacturers do not operate a public-facing support website.
Newer 4MP or 5MP CMOS sensors require updated encoding libraries. If you buy a new 4K TVI camera and your XVR shows "No Signal," a firmware update is often the solution.
Firmware versions prior to V4.000.0000000.1.R.20210320 have a memory leak in the H.265 decoder when using SmartPSS or CMS, causing the DVR to freeze after 5–7 days of continuous recording.
: The firmware includes patches for known bugs and issues, improving the overall stability and reliability of the device. This reduces the likelihood of unexpected shutdowns or data corruption, providing users with peace of mind.
