Firmware

DH_NVR4x-EI_MultiLang_V4.005.0000001.5.R.250923.zip

Dahua firmware released Sep 23, 2025. Encrypted firmware.

Released: Sep 23, 2025
Version: V4.005.0000001.5.R
Size: 103.7 MB
Hardware: Encrypted firmware

Download

Download firmware

Permanent copy on the Internet Archive (item page)

MD5: 70e656ba161187e53d88df73074d5464
SHA-256: 3f53ed5020ec6f69c3465b4d0b2ac5c62cc4e79c931df5badf610d639140d67d

Where it's published

Recovered from the Wayback Machine
Dahua
Wayback Machine (materialfile.dahuasecurity.com)
Wayback copy
Captured Dec 6, 2025 from https://materialfile.dahuasecurity.com/uploads/cpq/SWR/3441579/M/DH_NVR4x-EI_MultiLang_V4.005.0000001.5.R.250923.zip
- Recovered from the Wayback Machine (captured 2025-12-06)
V4.005.0000001.5.R · Listed date Sep 23, 2025
Wayback Machine copy (web.archive.org)

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.