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Firmware

DH_NVR4x-4KS2L_MultiLang_V4.001.0000001.0.R.210222.bin

Dahua firmware released Feb 22, 2021. May work with 1 device.

Released
Feb 22, 2021
Version
V4.001.0000001.0.R
Size
65.8 MB
Hardware
1 device

Download

Download firmware

Permanent copy on the Internet Archive (item page)

MD5
297f1988908a03b7ac076003f72906a4
SHA-256
9d4db19321f86fff215b82eafeee8009c3372a252d7fc7843b9891b88546895b

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)).

Architecture
arm
Flash
128.0 MB
Image dates
Feb 22, 2021
Security
Signed
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—2021-02-22
env0x5400000x7400002.0 MBnot written——
romfs0x7400000x378000048.3 MBromfs-x.squashfs.imgsquashfs2021-02-22
custom0x37800000x39800002.0 MBcustom-x.squashfs.imgsquashfs2021-02-22
web0x39800000x488000015.0 MBminios-x.squashfs.imgsquashfs2021-02-22
logo0x48800000x4a800002.0 MBlogo-x.squashfs.imgsquashfs2021-02-22
dgs0x4a800000x4b00000512.0 KBnot written——
ext_usr0x4b000000x740000041.0 MBeusr-x.squashfs.imgsquashfs2021-02-22
config_fw0x74000000x76000002.0 MBnot written——
config0x76000000x800000010.0 MBnot written——

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