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NVR4000-4KS2

ASM lists 2 firmware files for the NVR4000-4KS2. This is the retail model name. Inside the firmware, Dahua uses its own device IDs, listed below, which can lead you to more compatible firmware.

Firmware files
2
Newest
Feb 24, 2017
Listed by
ASM
Dahua device IDs
1

Vendor notes

Firmware

Dahua device IDs in this firmware

Compare these with the updateSerial your device reports. Each one links to every firmware found for that ID.