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Firmware

DH_XVR4x04-I-V2_MultiLang_V4.004.0000001.0.R.250821.zip

Dahua firmware released Sep 10, 2025. May work with 1 device.

Released
Sep 10, 2025
Version
V4.004.0000001.0.R
Size
44.5 MB
Hardware
1 device

Download

Download firmware

Permanent copy on the Internet Archive (item page)

MD5
dfada7b6c150a256e04e66c5d972633f
SHA-256
a9a55743f8439fd8657a561f780a89299cb2f7b3dc8bbcd5c358fabbb52481d3
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_XVR4x04-I-V2_MultiLang_V4.004.0000001.0.R.250821.bin: the installer script's board checks, 2 IDs

Technical details

Read from inside the firmware (zip archive).

Architecture
arm
Flash
64.0 MB
Image dates
Aug 21, 2025
Security
Signed
Flash layout: 12 partitions, 7 written by this firmware

From the recorder's Install.lua partition table.

PartitionStartEndSizeImageFilesystemBuilt
param0xa00000000xa02c00002.8 MBnot written——
uboot0xa02c00000xa05400002.5 MBu-boot.bin.img—2025-08-21
env0xa05400000xa07400002.0 MBnot written——
kernel0xa07400000xa0b800004.3 MBuImage.img—2025-08-21
romfs0xa0b800000xa2c8000033.0 MBromfs-x.squashfs.imgsquashfs2025-08-21
custom0xa2c800000xa2d00000512.0 KBcustom-x.squashfs.imgsquashfs2025-08-21
web0xa2d000000xa34400007.3 MBweb-x.squashfs.imgsquashfs2025-08-21
logo0xa34400000xa34c0000512.0 KBlogo-x.squashfs.imgsquashfs2025-08-21
ext_usr0xa34c00000xa37400002.5 MBext_usr-x.squashfs.imgsquashfs2025-08-21
dgs0xa37400000xa3780000256.0 KBnot written——
config_fw0xa37800000xa3a800003.0 MBnot written——
config0xa3a800000xa40000005.5 MBnot written——

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