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Firmware

DH_NVR2X-4KS3_MultiLang_V4.005.0000000.6.R.260304.zip

Dahua firmware released Mar 4, 2026. Encrypted firmware.

Released
Mar 4, 2026
Version
V4.005.0000000.6.R
Size
65.9 MB
Hardware
Encrypted firmware

Download

Download firmware

Permanent copy on the Internet Archive (item page)

MD5
ef96ae8c57e29be9e2ac2544927c19a1
SHA-256
b6b6dba459b1983a9578d2e02ccda1f1c7ec137e45dde73c258ada3eb17031a6

Where it's published

Compatible hardware

This firmware is encrypted (the format Dahua uses for NVR4/NVR5 EI and XI builds), so its contents, including its list of supported hardware, can't be read. Use the model names the vendors list for it instead.