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Firmware

DH_SD-Prometheus_Chn_PN_Stream3_V2.812.0000047.2.R.240723.bin

Dahua firmware released Aug 9, 2024. May work with 65 devices, including CA-HZ2023XA-A, CA-HZ2023XA-B, CA-HZ2023XA2-A.

Released
Aug 9, 2024
Version
V2.812.0000047.2.R
Size
202.9 MB
Hardware
65 devices

Download

Download firmware

Permanent copy on the Internet Archive (item page)

MD5
c00fe7caa5916157d5ce4b17b1bab5c7
SHA-256
65d00c9364d924d596e10e66420a4704537055a6cc71eb04ae6e8c7d1ed93099

The vendor published a different MD5 for this file. It was kept because two separate downloads were identical, and it passed the integrity check; vendors occasionally publish wrong checksums.

Where it's published

Compatible hardware

Hardware IDs this firmware's installer accepts (65 devices).

Where these IDs come from
  • hwid: the device's own hardware check list, 65 IDs
  • Install: the installer's device list (board families), 1 ID, vendor Dahua (not counted: a more specific list exists)
  • check.img: the device's own hardware check list, 65 IDs

Technical details

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

Architecture
arm
OEM build
Dahua
Flash
3.5 GB
Image dates
Jul 23, 2024
Security
Signed, encrypted, security baseline V2.2
Language & video
SimpChinese by default · PAL
Flash layout: 20 partitions, 7 written by this firmware

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

PartitionStartEndSizeImageFilesystemBuilt
U-Boot0x2000000x3000001.0 MBdhboot.bin.img—2024-07-23
hwid0x3000000x4000001.0 MBnot written——
updateflag0x4000000x5000001.0 MBnot written——
partition(ro)0x5000000x6000001.0 MBpartition-x.cramfs.imgcramfs2024-07-23
lens0x6000000x8000002.0 MBnot written——
Kernel0x8000000x180000016.0 MBkernel.img—2024-07-23
custom(ro)0x18000000x1c000004.0 MBcustom-x.squashfs.imgsquashfs2024-07-23
product(ro)0x1c000000x20000004.0 MBpd-x.squashfs.imgsquashfs2024-07-23
romfs(ro)0x20000000x16000000320.0 MBromfs-x.squashfs.imgsquashfs2024-07-23
web(ro)0x160000000x1800000032.0 MBweb-x.squashfs.imgsquashfs2024-07-23
coredump0x2f9000000x3c100000200.0 MBnot written——
dgs0x3c1000000x3c9000008.0 MBnot written——
model0x3c9000000x53900000368.0 MBnot written——
reserve0x539000000x5590000032.0 MBnot written——
ext0x560000000x5c00000096.0 MBnot written——
devconfig0x5c0000000x5d00000016.0 MBnot written——
syslog0x5d0000000x5e00000016.0 MBnot written——
config0x5e0000000x5f00000016.0 MBnot written——
backup0x5f0000000x6000000016.0 MBnot written——
appdata0x600000000xe00000002.0 GBnot 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 V2.2 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.