the OEM specifically states "Dahua OEM." Otherwise, you need the rebranded firmware. Lorex firmware has a different RSA key signature.
Analyzes person and vehicle shapes to trigger alarms only when relevant targets are detected, filtering out animals, leaves, and light changes. dhxvr5104hsi3 firmware
DH-XVR5104HS-I3 firmware report provides details on current versions, update methods, and the functional benefits of maintaining up-to-date software for this WizSense series digital video recorder. Current Firmware Overview the OEM specifically states "Dahua OEM