Firmware

NVR4x-EI_MultiLang_V4.005.0000001.6.R.251219.zip

Eltrox firmware released Dec 19, 2025. Encrypted firmware.

Released: Dec 19, 2025
Version: V4.005.0000001.6.R
Size: 103.7 MB
Hardware: Encrypted firmware

Download

Download firmware

Permanent copy on the Internet Archive (item page)

MD5: 090ed477bb780ae1fccd90b45aa832b6
SHA-256: 0e217bbfec8c5599118c0f0209d8f06ad86159e51572432d4f409ef97a17ae57

Where it's published

Mirrored by
Eltrox
Eltrox (ftp.eltrox.pl)
Mirror
Series: NVR4XXX-EI
- Folder: REJESTRATORY/NVR/NVR4XXX-EI
V4.005.0000001.6.R · Listed date Dec 19, 2025
Mirror link (ftp.eltrox.pl)

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.