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Firmware

DH_SD-Eos_MultiLang_PN_Stream3_V2.812.0000017.3.R.260827.bin

Dahua firmware released Aug 27, 2026. May work with 71 devices, including CA-HZ1020U, CA-HZ1020U1, CA-HZ1023MU.

Released
Aug 27, 2026
Version
V2.812.0000017.3.R
Size
36.9 MB
Hardware
71 devices

Download

Download firmware

Permanent copy on the Internet Archive (item page)

MD5
aa04890403ff68145f2502131a5b28a7
SHA-256
692c163c354315d759b573d4a233ce1e55d2b377b9c9513ee9213fed905ed538

Where it's published

Compatible hardware

Hardware IDs this firmware's installer accepts (71 devices).

Where these IDs come from
  • hwid: the device's own hardware check list, 71 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, 71 IDs

Technical details

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

Architecture
arm
OEM build
General
Flash
128.0 MB
Image dates
Aug 27, 2026
Security
Signed
Language & video
English by default · 23 languages · PAL
Supported languages (23)

English, Italian, Spanish, Russian, French, German, Portuguese, Polish, Korean, Czech, Dutch, Arabic, SpanishEU, Turkish, Ukrainian, Hebrew, Hungarian, Romanian, Thai, Indonesian, Vietnamese, TradChinese, Japanese

Flash layout: 17 partitions, 8 written by this firmware

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

PartitionStartEndSizeImageFilesystemBuilt
upmcu00x00x1000001.0 MBnot written——
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
custom(ro)0x6000000x9800003.5 MBcustom-x.squashfs.imgsquashfs2026-08-27
product(ro)0x9800000xd000003.5 MBpd-x.squashfs.imgsquashfs2026-08-27
Kernel0xd000000x12000005.0 MBkernel.img—2026-08-27
romfs(ro)0x12000000x1a000008.0 MBromfs-x.squashfs.imgsquashfs2026-08-27
web(ro)0x1a000000x22000008.0 MBweb-x.squashfs.imgsquashfs2026-08-27
user(ro)0x22000000x3a8000024.5 MBuser-x.squashfs.imgsquashfs2026-08-27
lens0x71000000x72000001.0 MBnot written——
syslog0x72000000x76000004.0 MBnot writtenubi—
config0x76000000x7a000004.0 MBnot writtenubi—
backup0x7a000000x7e000004.0 MBnot writtenubi—
devconfig0x7e000000x7f000001.0 MBnot writtenjffs2—
dgs0x7f000000x80000001.0 MBnot written——

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