Firmware

NVR4x-4KS3_MultiLang_V4.006.0000000.4.R.251229.zip

Eltrox firmware released Dec 29, 2025. Encrypted firmware.

Released: Dec 29, 2025
Version: V4.006.0000000.4.R
Size: 69.5 MB
Hardware: Encrypted firmware

Download

Download firmware

Permanent copy on the Internet Archive (item page)

MD5: 21ba3250a76e2bd5ffdc0221e0ff8dfb
SHA-256: 81f6095da4bbe41808228a5939dd9c7ed25cf6193e54a8ec37d425fe7d510dff

Where it's published

Mirrored by
Eltrox
Eltrox (ftp.eltrox.pl)
Mirror
Series: NVR4XXX-4KS3
- Folder: REJESTRATORY/NVR/NVR4XXX-4KS3
V4.006.0000000.4.R · Listed date Dec 29, 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.