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Firmware

DH_NVR2X-4KS3_MultiLang_V4.005.0000000.7.R.260616.zip

Dahua firmware released Jul 31, 2026. Encrypted firmware.

Released
Jul 31, 2026
Version
V4.005.0000000.7.R
Size
65.9 MB
Hardware
Encrypted firmware

Download

Download firmware

Permanent copy on the Internet Archive (item page)

MD5
54a7b364b3903e4717095818a183e44b
SHA-256
3bc9669099de4a677e253511de2956007f53c76e2916a60112f90f1d99ad728a
Changelog
Release notes

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.