If you absolutely must revert, you need the and a firmware file signed with an older key – a process that requires factory intervention.
Hikvision produces many variations of similar models. The model number "DS-7208HVI-SH" is specific, but there are variations (like DS-7208HVI-SH/V2 or DS-7208HUHI-SH). You must open the casing of your DVR and look at the label on the mainboard, or check the "System Information" menu on the TV output. ds-7208hvi-sh firmware update
While the firmware update usually preserves your recording settings, it is best practice to export your configuration file. If you absolutely must revert, you need the
Since this model is legacy hardware, the standard Hikvision global site may not list it prominently. Official Portal: Hikvision Europe Portal maintains a "Phased Out" directory. Latest Build: The most common stable build for this series is V3.1.4 build150430 You must open the casing of your DVR