Skip to content

Firmware

DH_NVR4XXX-4KS2_MultiLang_V4.000.0000001.4.R.191129.bin

Dahua firmware released Nov 29, 2019. May work with 1 device.

Released
Nov 29, 2019
Version
V4.000.0000001.4.R
Size
50.3 MB
Hardware
1 device

Download

Download firmware

Permanent copy on the Internet Archive (item page)

MD5
2ad61a5a1d418d7bc7c2786ec87b64a3
SHA-256
c2e233b010cdf8143db3a3accf854aca4d7c85091220450617b58290ed4de494

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: the installer script's board checks, 2 IDs

Technical details

Read from inside the firmware (dahua package (zip variant)).

SoC
HiSilicon Hi3798CV200
Architecture
arm
Flash
128.0 MB
Image dates
Nov 29, 2019
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—2019-11-29
env0x3000000x5000002.0 MBnot written——
uImage0x5000000xf0000010.0 MBuImage.img—2019-11-29
rootfs0xf000000x450000054.0 MBromfs-x.squashfs.imgsquashfs2019-11-29
web0x45000000x4f0000010.0 MBweb-x.squashfs.imgsquashfs2019-11-29
custom0x4f000000x51000002.0 MBcustom-x.squashfs.imgsquashfs2019-11-29
logo0x51000000x54000003.0 MBlogo-x.squashfs.imgcramfs2019-11-29
config0x54000000x5a000006.0 MBnot written——
logs0x5a000000x640000010.0 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.