Firmware

General_NVR4x-EI_MultiLang_V4.005.0000001.7.R.260818.zip

Dahua firmware released Aug 18, 2026. Encrypted firmware.

Released: Aug 18, 2026
Version: V4.005.0000001.7.R
Size: 103.6 MB
Hardware: Encrypted firmware

Download

Download firmware

Permanent copy on the Internet Archive (item page)

MD5: 03eb9747b7f493e3494a6bb8eefee9b2
SHA-256: dbe202ec5195316d0b025f6e768c1ffd79483a347468198a63b77ca45ae8d482

Where it's published

Mirrored by
Dahua
files.dahuatech.support
Mirror
Series: _NVR4xxx-EI
- Folder: Recorders/NVR/_NVR4xxx-EI
V4.005.0000001.7.R · Listed date Aug 18, 2026
Mirror link (files.dahuatech.support)

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.