Firmware
DH_SD-Si-Leo_MultiLang_PN_Stream3_V2.822.0000006.2.R.260827.zip
Dahua firmware released Sep 16, 2026. May work with 12 devices, including CA-HZ2023ZB1-A, CA-HZ2023ZB1-B, CA-HZ2032ZB-B.
- Released
- Sep 16, 2026
- Version
- V2.822.0000006.2.R
- Size
- 153.0 MB
- Hardware
- 12 devices
Download
Permanent copy on the Internet Archive (item page)
- MD5
4c6db82de5f9a763a1b336591c2c139b- SHA-256
006f4ef39eaf931c4fb68c093f7b7188b524f96e037552c6e01374d3bd9adfbd- Changelog
- Release notes
Where it's published
Available from
Dahua
Dahua Download Center
CurrentSold as
V2.822.0000006.2.R · Listed date Sep 16, 2026
Compatible hardware
Hardware IDs this firmware's installer accepts (12 devices). Names with placeholders such as x or XXX are board families.
- CA-HZ2023ZB1-A
- CA-HZ2023ZB1-B
- CA-HZ2032ZB-B
- CA-HZ4024ZB-A
- CA-HZ4032ZB-B
- IPC-HX3XXX
- SD6XXX
- SDT7C1223-4F-ZB-0400-A
- SDT7C1223-4F-ZB-0400-B
- SDT7C1232-4F-ZB-0400-A
- SDT7C1424-ZB-0400-A
- SDT7C1432-4F-ZB-0400-A
Where these IDs come from
- hwid in DH_SD-Si-Leo_MultiLang_PN_Stream3_V2.822.0000006.2.R.260827.bin: the device's own hardware check list, 10 IDs
- Install in DH_SD-Si-Leo_MultiLang_PN_Stream3_V2.822.0000006.2.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-Si-Leo_MultiLang_PN_Stream3_V2.822.0000006.2.R.260827.bin: the device's own hardware check list, 10 IDs
- hwid in check.bin: the device's own hardware check list, 10 IDs
- Install in check.bin: the installer's device list (board families), 1 ID, vendor Dahua (not counted: a more specific list exists)
- check.img in check.bin: the device's own hardware check list, 10 IDs
- Install in General_SD6C3XXX-HN_MCU_V2.401.0000001.15.R.211028.bin: the installer's device list (board families), 2 IDs
Technical details
Read from inside the firmware (bundle of several firmwares). This file bundles 3 firmware images.
DH_SD-Si-Leo_MultiLang_PN_Stream3_V2.822.0000006.2.R.260827.bin
- Architecture
- arm
- OEM build
- Dahua
- Bootloader
- U-Boot 2010.06-svn10633
- Flash
- 3.7 GB
- Image dates
- Aug 27, 2026
- Security
- Signed, security baseline V2.1
- 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: 30 partitions, 11 written by this firmware
From the firmware's partition table (partitionV2.txt).
| Partition | Start | End | Size | Image | Filesystem | Built |
|---|---|---|---|---|---|---|
| mini-Boot | 0x0 | 0x100000 | 1.0 MB | dhboot-min.bin.img | — | 2026-08-27 |
| maxflash(ro) | 0x0 | 0xec000000 | 3.7 GB | not written | — | — |
| U-Boot | 0x200000 | 0x300000 | 1.0 MB | dhboot.bin.img | — | 2026-08-27 |
| hwid | 0x300000 | 0x400000 | 1.0 MB | not written | — | — |
| updateflag | 0x400000 | 0x500000 | 1.0 MB | not written | — | — |
| partition(ro) | 0x500000 | 0x600000 | 1.0 MB | partition-x.cramfs.img | cramfs | 2026-08-27 |
| lens | 0x600000 | 0x800000 | 2.0 MB | not written | — | — |
| dgs | 0x800000 | 0xa00000 | 2.0 MB | not written | — | — |
| config | 0xa00000 | 0x1a00000 | 16.0 MB | not written | — | — |
| backup | 0x1a00000 | 0x2a00000 | 16.0 MB | not written | — | — |
| syslog | 0x2a00000 | 0x3a00000 | 16.0 MB | not written | — | — |
| devconfig | 0x3a00000 | 0x4200000 | 8.0 MB | not written | — | — |
| custom(ro) | 0x4200000 | 0x4600000 | 4.0 MB | custom-x.squashfs.img | squashfs | 2026-08-27 |
| product(ro) | 0x4600000 | 0x4a00000 | 4.0 MB | pd-x.squashfs.img | squashfs | 2026-08-27 |
| Kernel(ro) | 0x4a00000 | 0x5200000 | 8.0 MB | kernel.img | — | 2026-08-27 |
| Kernelslv(ro) | 0x5200000 | 0x5a00000 | 8.0 MB | kernelslv.img | — | 2026-08-27 |
| web(ro) | 0x5a00000 | 0x7a00000 | 32.0 MB | web-x.squashfs.img | squashfs | 2026-08-27 |
| romfs(ro) | 0x7a00000 | 0xfa00000 | 128.0 MB | romfs-x.squashfs_aa.img | squashfs | 2026-08-27 |
| bakpart | 0xfa00000 | 0xfb00000 | 1.0 MB | not written | — | — |
| bakcustom | 0xfb00000 | 0xff00000 | 4.0 MB | not written | — | — |
| bakproduct | 0xff00000 | 0x10300000 | 4.0 MB | not written | — | — |
| bakkernel | 0x10300000 | 0x10b00000 | 8.0 MB | not written | — | — |
| bakkernelslv | 0x10b00000 | 0x11300000 | 8.0 MB | not written | — | — |
| bakweb | 0x11300000 | 0x13300000 | 32.0 MB | not written | — | — |
| bakromfs | 0x13300000 | 0x1b300000 | 128.0 MB | not written | — | — |
| res(ro) | 0x1b300000 | 0x2b300000 | 256.0 MB | not written | — | — |
| firmware(ro) | 0x2b300000 | 0x3b300000 | 256.0 MB | firmware-x.squashfs_aa.img | squashfs | 2026-08-27 |
| sfmw | 0x3b300000 | 0x4b300000 | 256.0 MB | sfmw-x.ext4_aa.img | ext4 | 2026-08-27 |
| appData | 0x4b300000 | 0xcb300000 | 2.0 GB | not written | — | — |
| coredump | 0xcb300000 | 0xe3300000 | 384.0 MB | not written | — | — |
check.bin
- Architecture
- arm
- OEM build
- Dahua
- Image dates
- Aug 27, 2026
- Security
- Signed, security baseline V2.1
- 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
General_SD6C3XXX-HN_MCU_V2.401.0000001.15.R.211028.bin
- Architecture
- arm
- Image dates
- Jan 18, 2016
- Security
- Signed
Flash layout: 1 partition, 1 written by this firmware
From the image headers (only partitions this firmware writes).
| Partition | Start | End | Size | Image | Filesystem | Built |
|---|---|---|---|---|---|---|
| camera | 0x0 | 0xc0000400 | 3.0 GB | mcu-main.bin.img | — | 2016-01-18 |
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.
Related firmware
Other files for much of the same hardware, from any vendor.
- General_SD7A8XXX-HN_MCU_V2.401.0000003.27.R.260907.zip
Released Oct 18, 2026 · V2.401.0000003.27.R · 2 devices · Dahua
- DH_IPC-HX5X3X-Rhea_MultiLang_PN_Stream3_V2.800.0000033.0.R.260821.zip
Released Aug 21, 2026 · V2.800.0000033.0.R · 307 devices · Dahua
- General_IPC-HX5X3X-Rhea_MultiLang_PN_Stream3_V2.800.0000033.0.R.260821.zip
Released Aug 21, 2026 · V2.800.0000033.0.R · 307 devices · Dahua
- General_SD50XXX-HN_MCU_V2.401.0000003.18.R.260105.zip
Released Aug 7, 2026 · V2.401.0000003.18.R · 2 devices · Dahua
- General_SD5AXXXG-HN-DB_MCU_V2.401.0000003.23.R.260525.zip
Released Jul 29, 2026 · V2.401.0000003.23.R · 2 devices · Dahua
- General_SD8A1XXXG-HN-ES-DB_MCU_V2.401.0000003.23.R.260716.zip
Released Jul 29, 2026 · V2.401.0000003.23.R · 2 devices · Dahua
- General_SD5AXXXG-HN_MCU_V2.401.0000003.19.R.260209.zip
Released Jul 7, 2026 · V2.401.0000003.19.R · 2 devices · Dahua
- General_SD50XXX-HN_MCU_V2.401.0000003.19.R.260209.zip
Released Jun 27, 2026 · V2.401.0000003.19.R · 2 devices · Dahua