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Firmware

DH_NVR2XXX-I2_Mul_V4.002.0000001.5.R.260706.zip

Dahua firmware released Jul 27, 2026. May work with 1 device.

Released
Jul 27, 2026
Version
V4.002.0000001.5.R
Size
101.9 MB
Hardware
1 device

Download

Download firmware

Permanent copy on the Internet Archive (item page)

MD5
ca01620eee662050841d79974525610d
SHA-256
5a13ed486324013faf3054d50bfe9227bb3fba83ca9e88a4fe54a0ad97d53914
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-I2_Mul_V4.002.0000001.5.R.260706.bin: the installer script's board checks, 2 IDs

Technical details

Read from inside the firmware (zip archive).

SoC
Novatek: one of NT98323, NT98321
Architecture
arm
Bootloader
U-Boot 2016.07-svn10415
Flash
384.0 MB
Image dates
Jul 6, 2026
Security
Signed, upgrade security version 2.20
Flash layout: 12 partitions, 7 written by this firmware

From the recorder's Install.lua partition table.

PartitionStartEndSizeImageFilesystemBuilt
loader0xa00000000xa0040000256.0 KBnot written——
fdt0xa00400000xa0080000256.0 KBfdt.bin.img—2026-07-06
uboot0xa00c00000xa02c00002.0 MBu-boot.bin.img—2026-07-06
uenv0xa02c00000xa04400001.5 MBnot written——
rootfs0xa04400000xa378000051.3 MBromfs-x.squashfs.imgsquashfs2026-07-06
custom0xa37800000xa39800002.0 MBcustom-x.squashfs.imgsquashfs2026-07-06
web0xa39800000xa488000015.0 MBminios-x.squashfs.imgsquashfs2026-07-06
logo0xa48800000xa4a800002.0 MBlogo-x.squashfs.imgsquashfs2026-07-06
dgs0xa4a800000xa4b00000512.0 KBnot written——
ext_usr0xa4b000000xa700000037.0 MBext_usr-x.squashfs.imgsquashfs2026-07-06
config_fw0xa70000000xa76000006.0 MBnot written——
config0xa76000000xb8000000266.0 MBnot written——

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