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Firmware

NVR4XXX-4KS2.201126.bin

GSS and ENS Security and Winic firmware released Nov 26, 2020. May work with 1 device.

Released
Nov 26, 2020
Size
55.5 MB
Hardware
1 device

Download

Download firmware

Permanent copy on the Internet Archive (item page)

MD5
72dd7197060bd84b9bb9c3c92c973661
SHA-256
3e3c6ddcd6d7b1639f5fddf7e2561831a102bfd65fdcd79a9220a916bc690690

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 26, 2020
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—2020-11-26
env0x3000000x5000002.0 MBnot written——
uImage0x5000000xf0000010.0 MBuImage.img—2020-11-26
rootfs0xf000000x450000054.0 MBromfs-x.squashfs.imgsquashfs2020-11-26
web0x45000000x4f0000010.0 MBweb-x.squashfs.imgsquashfs2020-11-26
custom0x4f000000x51000002.0 MBcustom-x.squashfs.imgsquashfs2020-11-26
logo0x51000000x54000003.0 MBlogo-x.squashfs.imgcramfs2020-11-26
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.

Also published as

Byte-for-byte identical files under other names:

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