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Firmware

DH_NVR2XXX-S3_MultiLang_V4.005.0000000.5.R.251231.zip

Dahua firmware released Jan 12, 2026. May work with 1 device.

Released
Jan 12, 2026
Version
V4.005.0000000.5.R
Size
50.9 MB
Hardware
1 device

Download

Download firmware

Permanent copy on the Internet Archive (item page)

MD5
997380d60a04938881ce8e22255286dd
SHA-256
932da3a541330704146a1a38a2ba9a2f8747e6d83259724dec60e137107135c2
Changelog
Release notes

Where it's published

Compatible hardware

Hardware IDs this firmware's installer accepts (1 device). Names with placeholders such as x or XXX are board families.

Where these IDs come from
  • Install.lua in DH_NVR2XXX-S3_MultiLang_V4.005.0000000.5.R.251231.bin: the installer script's board checks, 2 IDs

Technical details

Read from inside the firmware (zip archive).

Architecture
arm
Flash
64.0 MB
Image dates
Dec 31, 2025
Security
Signed, upgrade security version 2.30
Flash layout: 13 partitions, 5 written by this firmware

From the recorder's Install.lua partition table.

PartitionStartEndSizeImageFilesystemBuilt
param0x00x1400001.3 MBnot written——
ipl0x1400000x200000768.0 KBnot written——
ipl_cust0x2000000x2c0000768.0 KBnot written——
boot0x2c00000x4400001.5 MBu-boot.bin.img—2025-12-31
env0x4400000x5400001.0 MBnot written——
romfs0x5400000x2a4000037.0 MBromfs-x.squashfs.imgsquashfs2025-12-31
custom0x2a400000x2ac0000512.0 KBcustom-x.squashfs.imgsquashfs2025-12-31
web0x2ac00000x34c000010.0 MBminios-x.squashfs.imgsquashfs2025-12-31
logo0x34c00000x3540000512.0 KBlogo-x.squashfs.imgsquashfs2025-12-31
config_fw0x35400000x38400003.0 MBnot written——
config0x38400000x3dc00005.5 MBnot written——
logs0x3dc00000x3fc00002.0 MBnot written——
dgs0x3fc00000x4000000256.0 KBnot written——

Other files for much of the same hardware, from any vendor.