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Firmware

DH_NVR4x-4KS2L_MultiLang_V4.002.0000000.3.R.220322.zip

Dahua firmware released Mar 22, 2022. May work with 1 device.

Released
Mar 22, 2022
Version
V4.002.0000000.3.R
Size
134.1 MB
Hardware
1 device

Download

Download firmware

Permanent copy on the Internet Archive (item page)

MD5
8f920a5d663b8d6524337673f911dd2d
SHA-256
729d4eb8d5abc4b787140406710a54db14ceb08fea5bc0db22e63fb4b8bb8535

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_NVR4x-4KS2L_MultiLang_V4.002.0000000.3.R.220322.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

Architecture
arm
Image dates
Mar 22, 2022
Security
Not signed
Flash layout: 4 partitions, 4 written by this firmware

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

PartitionStartEndSizeImageFilesystemBuilt
u-boot0xa01400000xa05400004.0 MBu-boot.bin.img—2022-03-22
custom0xa37800000xa39800002.0 MBcustom-x.squashfs.imgsquashfs2022-03-22
web0xa39800000xa488000015.0 MBweb-x.squashfs.imgsquashfs2022-03-22
logo0xa48800000xa4a800002.0 MBlogo-x.squashfs.imgsquashfs2022-03-22

DH_NVR4x-4KS2L_MultiLang_V4.002.0000000.3.R.220322.bin

Architecture
arm
Flash
128.0 MB
Image dates
Mar 22, 2022
Security
Signed, upgrade security version 3.00
Flash layout: 11 partitions, 6 written by this firmware

From the recorder's Install.lua partition table.

PartitionStartEndSizeImageFilesystemBuilt
param0x00x1400001.3 MBnot written——
boot0x1400000x5400004.0 MBu-boot.bin.img—2022-03-22
env0x5400000x7400002.0 MBnot written——
romfs0x7400000x378000048.3 MBromfs-x.squashfs.imgsquashfs2022-03-22
custom0x37800000x39800002.0 MBcustom-x.squashfs.imgsquashfs2022-03-22
web0x39800000x488000015.0 MBminios-x.squashfs.imgsquashfs2022-03-22
logo0x48800000x4a800002.0 MBlogo-x.squashfs.imgsquashfs2022-03-22
dgs0x4a800000x4b00000512.0 KBnot written——
ext_usr0x4b000000x740000041.0 MBeusr-x.squashfs.imgsquashfs2022-03-22
config_fw0x74000000x76000002.0 MBnot written——
config0x76000000x800000010.0 MBnot written——

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