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Firmware

DH_IPC-DS21-Hertz2_Eng_N_NonCA_V1.000.0000000.9.R.230607.bin

Dahua firmware released Jun 7, 2023. May work with 2 devices, including IPC-WDS-S2-Cayenne, IPC-WDS-S2-USA.

Released
Jun 7, 2023
Version
V1.000.0000000.9.R
Size
7.3 MB
Hardware
2 devices

Download

Download firmware

Permanent copy on the Internet Archive (item page)

MD5
db28e2719d1897250527b3c967548dba
SHA-256
886b24aae5aca7ece769762651a9ea906c35cae777082e71f585b4f19216d7d7

Where it's published

Compatible hardware

Hardware IDs this firmware's installer accepts (2 devices).

Where these IDs come from
  • hwid: the device's own hardware check list, 2 IDs
  • Install: the installer's device list (board families), 1 ID, vendor General (not counted: a more specific list exists)
  • check.img: the device's own hardware check list, 2 IDs

Technical details

Read from inside the firmware (dahua package (zip variant)).

SoC
SigmaStar
Architecture
arm
OEM build
General
Kernel
Linux 4.9.84
Flash
8.0 MB
Image dates
Jun 7, 2023
Security
Signed, not encrypted, security baseline V2.1
Language & video
English by default · NTSC
Flash layout: 6 partitions, 4 written by this firmware

From the firmware's partition table (partitionV2.txt).

PartitionStartEndSizeImageFilesystemBuilt
U-Boot0x00x30000192.0 KBdhboot.bin.img—2023-06-07
hwid0x300000x4000064.0 KBnot written——
partition(ro)0x400000x5000064.0 KBpartition-x.cramfs.imgcramfs2023-06-07
Kernel0x500000x1900001.3 MBkernel.img—2023-06-07
romfs(ro)0x1900000x7b00006.1 MBromfs-x.squashfs.imgsquashfs2023-06-07
config0x7b00000x800000320.0 KBnot writtenjffs2—

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 V2.1 may refuse this file, and after installing it you may not be able to downgrade to firmware with a lower baseline.