Firmware
DH_IPC-WDB-Cauchy_Eng_PN_V2.820.0000000.18.R.260714.zip
Dahua firmware released Jul 26, 2026. May work with 1 device, including DB43BP-BTR.
- Released
- Jul 26, 2026
- Version
- V2.820.0000000.18.R
- Size
- 29.2 MB
- Hardware
- 1 device
Download
Permanent copy on the Internet Archive (item page)
- MD5
24d507511a0f0e31b3090c1755cc72d1- SHA-256
e630dca2ab742e0017c70b517a255736def6b802cfeaaa559f2986fa2a58a7f8- Changelog
- Release notes
Where it's published
Available from
Dahua
Dahua Download Center
CurrentSold as
V2.820.0000000.18.R · Listed date Jul 26, 2026
Compatible hardware
Hardware IDs this firmware's installer accepts (1 device).
Where these IDs come from
- hwid in DH_IPC-WDB-Cauchy_Eng_PN_V2.820.0000000.18.R.260714.bin: the device's own hardware check list, 1 ID
- Install in DH_IPC-WDB-Cauchy_Eng_PN_V2.820.0000000.18.R.260714.bin: the installer's device list (board families), 1 ID, vendor General (not counted: a more specific list exists)
- check.img in DH_IPC-WDB-Cauchy_Eng_PN_V2.820.0000000.18.R.260714.bin: the device's own hardware check list, 1 ID
Technical details
Read from inside the firmware (zip archive).
- Architecture
- arm
- OEM build
- General
- Image dates
- Jul 14, 2026
- Security
- Signed, security baseline V2.4
- Language & video
- English by default · PAL
- Software version
- V2.820.0000000.18.R.260714
Flash layout: 6 partitions, 6 written by this firmware
From the image headers (only partitions this firmware writes).
| Partition | Start | End | Size | Image | Filesystem | Built |
|---|---|---|---|---|---|---|
| U-Boot | 0x140000 | 0x2c0000 | 1.5 MB | dhboot.bin.img | — | 2026-07-14 |
| RTOS | 0x640000 | 0xb40000 | 5.0 MB | rtos.img | — | 2026-07-14 |
| Kernel | 0xb40000 | 0x1040000 | 5.0 MB | kernel.img | — | 2026-07-14 |
| romfs | 0x1040000 | 0x2040000 | 16.0 MB | romfs-x.Ramdisk.img | — | 2026-07-14 |
| user | 0x2040000 | 0x2840000 | 8.0 MB | user-x.squashfs.img | squashfs | 2026-07-14 |
| rofile | 0x5240000 | 0x6600000 | 19.8 MB | rofiles.bin.img | — | 2026-07-14 |
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 V2.4 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_IPC-WDB-Cauchy_Eng_PN_V2.820.0000000.11.R.260204.zip
Released Feb 4, 2026 · V2.820.0000000.11.R · 1 device · Dahua