Use the manufacturer's verified executable ( WinFlash , flashrom , or a proprietary CLI utility).

If the JFL firmware is outdated, the board is likely a Hikvision DS-7200 or similar series. You will need to check the Hikvision website for compatible firmware for their DS-series DVRs that use the same underlying board, ensuring the revision (1.2) matches. Firmware File: Look for a digicap.dav file. How to Update the DS-80249 -P REV 1.2 Firmware

Background and context