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Firmware

General_NVR4XXX-4KS2_MultiLang_V4.001.0000003.1.R.200813.bin

ENS Security firmware released Aug 13, 2020. May work with 1 device.

Released
Aug 13, 2020
Version
V4.001.0000003.1.R
Size
54.2 MB
Hardware
1 device

Download

Download firmware

Permanent copy on the Internet Archive (item page)

MD5
78da380a28dee72b7287405fdc238f73
SHA-256
63de3942f302316be0028a2aee7d5dc25e9641ddc038fd22fa313198e03e806f

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
Aug 13, 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—2020-08-13
env0x3000000x5000002.0 MBnot written——
uImage0x5000000xf0000010.0 MBuImage.img—2020-08-13
rootfs0xf000000x450000054.0 MBromfs-x.squashfs.imgsquashfs2020-08-13
web0x45000000x4f0000010.0 MBweb-x.squashfs.imgsquashfs2020-08-13
custom0x4f000000x51000002.0 MBcustom-x.squashfs.imgsquashfs2020-08-13
logo0x51000000x54000003.0 MBlogo-x.squashfs.imgcramfs2020-08-13
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.