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Firmware

DH_SD-Prometheus_MultiLang_PN_Stream3_V2.812.0000047.13.R.260827.zip

Dahua firmware released Oct 19, 2026. May work with 65 devices, including CA-HZ2023XA-A, CA-HZ2023XA-B, CA-HZ2023XA2-A.

Released
Oct 19, 2026
Version
V2.812.0000047.13.R
Size
209.7 MB
Hardware
65 devices

Download

Download firmware

Permanent copy on the Internet Archive (item page)

MD5
5cc7019af6aa2c2959b84ac4d1301d84
SHA-256
a63d117691d7dc317f131d0f1c6ab39a73720a5b6c1d5170f8a703cdcd3a4233
Changelog
Release notes

Where it's published

Compatible hardware

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

Where these IDs come from
  • hwid in DH_SD-Prometheus_MultiLang_PN_Stream3_V2.812.0000047.13.R.260827.bin: the device's own hardware check list, 65 IDs
  • Install in DH_SD-Prometheus_MultiLang_PN_Stream3_V2.812.0000047.13.R.260827.bin: the installer's device list (board families), 1 ID, vendor Dahua (not counted: a more specific list exists)
  • check.img in DH_SD-Prometheus_MultiLang_PN_Stream3_V2.812.0000047.13.R.260827.bin: the device's own hardware check list, 65 IDs

Technical details

Read from inside the firmware (zip archive).

Architecture
arm
OEM build
Dahua
Flash
3.5 GB
Image dates
Aug 27, 2026
Security
Signed, encrypted, security baseline V2.2
Language & video
English by default · 23 languages · PAL
Supported languages (23)

English, Italian, Spanish, Russian, French, German, Portugal, Poland, Korean, Czechish, Dutch, Arabic, SpanishEU, Turkey, Ukrainian, Hebrew, Hungarian, Romanian, Thai, Indonesia, Vietnamese, TradChinese, Japanese

Flash layout: 20 partitions, 7 written by this firmware

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

PartitionStartEndSizeImageFilesystemBuilt
U-Boot0x2000000x3000001.0 MBdhboot.bin.img—2026-08-27
hwid0x3000000x4000001.0 MBnot written——
updateflag0x4000000x5000001.0 MBnot written——
partition(ro)0x5000000x6000001.0 MBpartition-x.cramfs.imgcramfs2026-08-27
lens0x6000000x8000002.0 MBnot written——
Kernel0x8000000x180000016.0 MBkernel.img—2026-08-27
custom(ro)0x18000000x1c000004.0 MBcustom-x.squashfs.imgsquashfs2026-08-27
product(ro)0x1c000000x20000004.0 MBpd-x.squashfs.imgsquashfs2026-08-27
romfs(ro)0x20000000x16000000320.0 MBromfs-x.squashfs.imgsquashfs2026-08-27
web(ro)0x160000000x1800000032.0 MBweb-x.squashfs.imgsquashfs2026-08-27
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.