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Firmware

DH_NVR4XXX-4KS2_MultiLang_V4.000.0000001.3.R.191016.bin

Dahua firmware released Oct 16, 2019. May work with 1 device.

Released
Oct 16, 2019
Version
V4.000.0000001.3.R
Size
50.3 MB
Hardware
1 device

Download

Download firmware

Permanent copy on the Internet Archive (item page)

MD5
1aa1655799095fbfbd4712df3967c6ba
SHA-256
ee450d110529866aa92e7862942cc2171660fbcb39389be64a457c4b542eb4c1

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
Oct 16, 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—2019-10-16
env0x3000000x5000002.0 MBnot written——
uImage0x5000000xf0000010.0 MBuImage.img—2019-10-16
rootfs0xf000000x450000054.0 MBromfs-x.squashfs.imgsquashfs2019-10-16
web0x45000000x4f0000010.0 MBweb-x.squashfs.imgsquashfs2019-10-16
custom0x4f000000x51000002.0 MBcustom-x.squashfs.imgsquashfs2019-10-16
logo0x51000000x54000003.0 MBlogo-x.squashfs.imgcramfs2019-10-16
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.