Skip to content

Firmware

DH_NVR2XXX-W-4KS2_MultiLang_V4.001.0000003.2.R.220901.zip

Dahua firmware released Nov 1, 2022. May work with 1 device.

Released
Nov 1, 2022
Version
V4.001.0000003.2.R
Size
106.9 MB
Hardware
1 device

Download

Download firmware

Permanent copy on the Internet Archive (item page)

MD5
e714c0c0ba21ed930aafc15d841ef4ce
SHA-256
272e0389c3ed81e852964bf9da56db789cd8906cbe2386b8c392ad5227fb87bc

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-W-4KS2_MultiLang_V4.001.0000003.2.R.220901.bin: the installer script's board checks, 2 IDs

Technical details

Read from inside the firmware (zip archive). This file bundles 2 firmware images.

Firmware image

SoC
HiSilicon: one of Hi3536, Hi3536C
Architecture
arm
Bootloader
U-Boot 2010.06-svn4825
Image dates
Sep 1, 2022
Security
Not signed
Flash layout: 4 partitions, 4 written by this firmware

From the image headers (only partitions this firmware writes).

PartitionStartEndSizeImageFilesystemBuilt
u-boot0xa00000000xa01000001.0 MBu-boot.bin.img—2022-09-01
web0xa45000000xa4f0000010.0 MBweb-x.squashfs.imgsquashfs2022-09-01
custom0xa4f000000xa51000002.0 MBcustom-x.squashfs.imgsquashfs2022-09-01
logo0xa51000000xa54000003.0 MBlogo-x.squashfs.imgsquashfs2022-09-01

DH_NVR2XXX-W-4KS2_MultiLang_V4.001.0000003.2.R.220901.bin

SoC
HiSilicon: one of Hi3536, Hi3536C
Architecture
arm
Bootloader
U-Boot 2010.06-svn4825
Flash
128.0 MB
Image dates
Sep 1, 2022
Security
Signed, security baseline V1.4, upgrade security version V2.0
Flash layout: 12 partitions, 6 written by this firmware

From the recorder's Install.lua partition table.

PartitionStartEndSizeImageFilesystemBuilt
boot0x00x3000003.0 MBu-boot.bin.img—2022-09-01
env0x3000000x5000002.0 MBnot written——
uImage0x5000000xf0000010.0 MBuImage.img—2022-09-01
rootfs0xf000000x450000054.0 MBromfs-x.squashfs.imgsquashfs2022-09-01
web0x45000000x4f0000010.0 MBweb-x.squashfs.imgsquashfs2022-09-01
custom0x4f000000x51000002.0 MBcustom-x.squashfs.imgsquashfs2022-09-01
logo0x51000000x54000003.0 MBlogo-x.squashfs.imgsquashfs2022-09-01
logs0x54000000x5a000006.0 MBnot written——
config0x5a000000x640000010.0 MBnot written——
extend10x64000000x6c000008.0 MBnot written——
backup0x6c000000x780000012.0 MBnot written——
extend20x78000000x80000008.0 MBnot written——

About the security baseline: firmware with a higher security baseline can stop a device going back to older firmware. A device already on a higher baseline than V1.4 may refuse this file, and after installing it you may not be able to downgrade to firmware with a lower baseline.

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