Firmware
DH_SD-Chen-Leo_MultiLang_PN_Stream3_V2.812.0000018.0.R.241113.zip
Dahua firmware released Nov 22, 2024. May work with 37 devices, including CA-HZ2023ZB-A, CA-HZ2023ZB1-C, CA-HZ2023ZB2-A.
- Released
- Nov 22, 2024
- Version
- V2.812.0000018.0.R
- Size
- 83.1 MB
- Hardware
- 37 devices
Download
Permanent copy on the Internet Archive (item page)
- MD5
12de13d3f1baa7527e145042fe4bb57d- SHA-256
4fb69913986d8d6692ef6b27e44172b472a53d61a3e3995a163a7e85a6515442- Changelog
- Release notes
Where it's published
Available from
Dahua
Dahua Download Center
CurrentSold as
V2.812.0000018.0.R · Listed date Nov 22, 2024
Compatible hardware
Hardware IDs this firmware's installer accepts (37 devices).
- CA-HZ2023ZB-A
- CA-HZ2023ZB1-C
- CA-HZ2023ZB2-A
- CA-HZ2025ZB-A
- CA-HZ2025ZB1-A
- CA-HZ2031ZA-A
- CA-HZ2032ZB-A
- CA-HZ2032ZB1-A
- CA-HZ2040RB-A
- CA-HZ2040ZB-A
- CA-HZ2045ZB-A
- CA-HZ4023RB-A
- CA-HZ4025ZA-A
- CA-HZ4025ZB-A
- CA-HZ4030RB-A
- CA-HZ4032RB-A
- CA-HZ4032RB-B
- CA-HZ4032RB3-A
- CA-HZ4032ZB-A
- CA-HZ4032ZB1-A
- CA-HZ4033ZA-A
- CA-HZ4040RB-A
- CA-HZ4040ZA-A
- CA-HZ4040ZB-A
- CA-HZ4045ZB-A
- CA-SDZ4032ZB2-A
- LX-IPC40425-A0-A
- PTZ-NT401ZB-A-F0360
- PTZ-NT402ZB-A-F0600
- PTZ-NT404ZB-A
- SD-MT1A404RB-A
- SD49225ZB-A
- SD49425ZB-A
- SD49D423RB-A
- SD49D423ZB-A
- SD6C3423ZB-A
- SD6C3423ZB-B
Where these IDs come from
- hwid in DH_SD-Chen-Leo_MultiLang_PN_Stream3_V2.812.0000018.0.R.241113.bin: the device's own hardware check list, 37 IDs
- Install in DH_SD-Chen-Leo_MultiLang_PN_Stream3_V2.812.0000018.0.R.241113.bin: the installer's device list (board families), 1 ID, vendor Dahua (not counted: a more specific list exists)
- check.img in DH_SD-Chen-Leo_MultiLang_PN_Stream3_V2.812.0000018.0.R.241113.bin: the device's own hardware check list, 37 IDs
Technical details
Read from inside the firmware (zip archive).
- Architecture
- arm
- OEM build
- Dahua
- Bootloader
- U-Boot 2010.06-svn10633
- Flash
- 256.0 MB
- Image dates
- Nov 13, 2024
- Security
- Signed, encrypted, 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: 28 partitions, 10 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 | — | 2024-11-13 |
| maxflash(ro) | 0x0 | 0x10000000 | 256.0 MB | not written | — | — |
| U-Boot | 0x200000 | 0x300000 | 1.0 MB | dhboot.bin.img | — | 2024-11-13 |
| 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 | 2024-11-13 |
| lens | 0x600000 | 0x800000 | 2.0 MB | not written | — | — |
| dgs | 0x800000 | 0x900000 | 1.0 MB | not written | — | — |
| config | 0x900000 | 0xd00000 | 4.0 MB | not written | ubi | — |
| backup | 0xd00000 | 0x1100000 | 4.0 MB | not written | ubi | — |
| syslog | 0x1100000 | 0x1500000 | 4.0 MB | not written | ubi | — |
| devconfig | 0x1500000 | 0x1900000 | 4.0 MB | not written | ubi | — |
| custom(ro) | 0x1900000 | 0x1d00000 | 4.0 MB | custom-x.squashfs.img | squashfs | 2024-11-13 |
| product(ro) | 0x1d00000 | 0x2100000 | 4.0 MB | pd-x.squashfs.img | squashfs | 2024-11-13 |
| Kernel(ro) | 0x2100000 | 0x2400000 | 3.0 MB | kernel.img | — | 2024-11-13 |
| Kernelslv(ro) | 0x2400000 | 0x2600000 | 2.0 MB | kernelslv.img | — | 2024-11-13 |
| web(ro) | 0x2600000 | 0x3000000 | 10.0 MB | web-x.squashfs.img | squashfs | 2024-11-13 |
| romfs(ro) | 0x3000000 | 0x6400000 | 52.0 MB | romfs-x.squashfs.img | squashfs | 2024-11-13 |
| bakpart | 0x6400000 | 0x6500000 | 1.0 MB | not written | — | — |
| bakcustom | 0x6500000 | 0x6900000 | 4.0 MB | not written | — | — |
| bakproduct | 0x6900000 | 0x6d00000 | 4.0 MB | not written | — | — |
| bakkernel | 0x6d00000 | 0x7000000 | 3.0 MB | not written | — | — |
| bakkernelslv | 0x7000000 | 0x7200000 | 2.0 MB | not written | — | — |
| bakweb | 0x7200000 | 0x7c00000 | 10.0 MB | not written | — | — |
| bakromfs | 0x7c00000 | 0xb000000 | 52.0 MB | not written | — | — |
| res(ro) | 0xb000000 | 0xb500000 | 5.0 MB | not written | — | — |
| firmware(ro) | 0xb500000 | 0xfb00000 | 70.0 MB | firmware-x.squashfs.img | squashfs | 2024-11-13 |
| appData | 0xfb00000 | 0xff00000 | 4.0 MB | not written | ubi | — |
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.
- DH_SD-Chen-Leo_MultiLang_NP_Stream3_V2.812.0000018.2.R.260827.zip
Released Sep 16, 2026 · V2.812.0000018.2.R · 37 devices · Dahua
- DH_SD-Chen-Leo_MultiLang_PN_Stream3_V2.812.0000018.2.R.260827.zip
Released Sep 16, 2026 · V2.812.0000018.2.R · 37 devices · Dahua
- DH_SD-Chen-Leo_MultiLang_PN_Stream3_V2.812.0000017.0.R.230814.zip
Released Aug 31, 2023 · V2.812.0000017.0.R · 37 devices · Dahua
- General_SD-Chen-Leo_MultiLang_PN_Stream3_V2.812.0000015.0.R.230228.bin
Released Feb 28, 2023 · V2.812.0000015.0.R · 37 devices · ASM
- Amcrest_SD-Chen-Leo_Eng_NP_Stream3_AMCREST_V2.812.00AC001.0.R.220801.bin
Released Aug 1, 2022 · V2.812.00AC001.0 · 37 devices · Amcrest