Firmware

3341962_DH_NVR2X-4KS3_MultiLang_V4.005.0000000.4.R.250812.zip

Dahua firmware released Aug 12, 2025. Encrypted firmware.

Released: Aug 12, 2025
Version: V4.005.0000000.4.R
Size: 65.8 MB
Hardware: Encrypted firmware

Download

Download firmware

Permanent copy on the Internet Archive (item page)

MD5: 6d6d6ff067d7e0b8c20aaecec7c4fdc7
SHA-256: ee27b32de1096829a74d0bf8003512b7bcb2f35d934919a72cdceef00ed74b54

Where it's published

Mirrored by
Dahua
files.dahuatech.support
Mirror
Series: NVR2X-4KS3
- Folder: Recorders/NVR/NVR2X-4KS3
V4.005.0000000.4.R · Listed date Aug 12, 2025
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.