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Type the DVR's IP address into a web browser. Go to Configuration > System > Maintenance > Upgrade , browse to your file, and click update.
: Documentation notes both Rev 1.2 and Rev 2.1 (often listed as DS-80249(V2.1)-J). It is critical to match the exact revision, as firmware for one may not be compatible with the other. Firmware Management Resources ds-80249 -p rev 1.2 firmware
Method 2: The TFTP Automated Recovery Tool (Network Recovery)
suggest that while this board is a reliable "workhorse," its firmware from early 2017 often lacks modern patches. Users frequently recommend using the This public link is valid for 7 days
The system may require a full AC power cycle (unplugging the cables) to initialize the new code. Troubleshooting Common Issues
Double-check the physical silkscreen on the board. Download the legacy firmware package tailored specifically to that older revision layout. Conclusion and Lifecycle Management Can’t copy the link right now
Use your flashing utility to read and save the current firmware ROM image to an external drive. This acts as a roll-back point.
If your system boots normally and you can access the on-screen display menu via a connected monitor, perform a local upgrade. Format a USB flash drive to file structure.
Before updating, check what is currently running:
If you are looking to update or troubleshoot this specific board, these official Hikvision Support guides are the standard references: Upgrading Firmware : You can typically upgrade via the local GUI under Maintenance > Upgrade or through a web browser by navigating to Configuration > System > Maintenance Finding Version Info