Firmware
DH_SD-Prometheus_MultiLang_PN_Stream3-Radar_V2.812.0000019.0.R.211107.zip
Dahua firmware released Jan 6, 2022. May work with 11 devices, including PFR4K-B240, PFR4K-D150, PFR4K-D300.
- Released
- Jan 6, 2022
- Version
- V2.812.0000019.0.R
- Size
- 60.7 MB
- Hardware
- 11 devices
Download
Permanent copy on the Internet Archive (item page)
- MD5
f71808260d0f5ec22348de9735897201- SHA-256
627a203dabd23dd3228f971af2bd030137a1ec9a26dac882cfe1f9babcb9ce4a- Changelog
- Release notes
Where it's published
Available from
Dahua
Dahua Download Center
CurrentV2.812.0000019.0.R · Listed date Jan 6, 2022
Compatible hardware
Hardware IDs this firmware's installer accepts (11 devices).
- PFR4K-B240
- PFR4K-D150
- PFR4K-D300
- PFR4K-D450
- PFR4K-E
- PFR5QI-E50
- PFR5QI-E50-SL
- PFR7AR-H30-A
- PFR7BX-H
- PFR7K-DS1K
- PFR7QR-E50
Where these IDs come from
- hwid in DH_SD-Prometheus_MultiLang_PN_Stream3-Radar_V2.812.0000019.0.R.211107.bin: the device's own hardware check list, 11 IDs
- Install in DH_SD-Prometheus_MultiLang_PN_Stream3-Radar_V2.812.0000019.0.R.211107.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-Radar_V2.812.0000019.0.R.211107.bin: the device's own hardware check list, 11 IDs
Technical details
Read from inside the firmware (zip archive).
- Architecture
- arm
- OEM build
- Dahua
- Flash
- 3.5 GB
- Image dates
- Nov 7, 2021
- Security
- Signed, encrypted, security baseline V2.2
- Language & video
- English by default · 13 languages · PAL
Supported languages (13)
English, Italian, Spanish, Russian, French, German, Portuguese, Polish, Korean, Czech, Dutch, Arabic, SpanishEU
Flash layout: 20 partitions, 7 written by this firmware
From the firmware's partition table (partitionV2.txt).
| Partition | Start | End | Size | Image | Filesystem | Built |
|---|---|---|---|---|---|---|
| U-Boot | 0x200000 | 0x300000 | 1.0 MB | dhboot.bin.img | — | 2021-11-07 |
| 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 | 2021-11-07 |
| lens | 0x600000 | 0x800000 | 2.0 MB | not written | — | — |
| Kernel | 0x800000 | 0x1800000 | 16.0 MB | kernel.img | — | 2021-11-07 |
| custom(ro) | 0x1800000 | 0x1c00000 | 4.0 MB | custom-x.squashfs.img | squashfs | 2021-11-07 |
| product(ro) | 0x1c00000 | 0x2000000 | 4.0 MB | pd-x.squashfs.img | squashfs | 2021-11-07 |
| romfs(ro) | 0x2000000 | 0x16000000 | 320.0 MB | romfs-x.squashfs.img | squashfs | 2021-11-07 |
| web(ro) | 0x16000000 | 0x18000000 | 32.0 MB | web-x.squashfs.img | squashfs | 2021-11-07 |
| coredump | 0x2f900000 | 0x3c100000 | 200.0 MB | not written | — | — |
| dgs | 0x3c100000 | 0x3c900000 | 8.0 MB | not written | — | — |
| model | 0x3c900000 | 0x53900000 | 368.0 MB | not written | — | — |
| reserve | 0x53900000 | 0x55900000 | 32.0 MB | not written | — | — |
| ext | 0x56000000 | 0x5c000000 | 96.0 MB | not written | — | — |
| devconfig | 0x5c000000 | 0x5d000000 | 16.0 MB | not written | — | — |
| syslog | 0x5d000000 | 0x5e000000 | 16.0 MB | not written | — | — |
| config | 0x5e000000 | 0x5f000000 | 16.0 MB | not written | — | — |
| backup | 0x5f000000 | 0x60000000 | 16.0 MB | not written | — | — |
| appdata | 0x60000000 | 0xe0000000 | 2.0 GB | not 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.
Related firmware
Other files for much of the same hardware, from any vendor.
- DH_SD-Prometheus_MultiLang_PN_Stream3-Radar_V2.812.0000056.2.R.251023.zip
Released Nov 20, 2025 · V2.812.0000056.2.R · 15 devices · Dahua
- DH_SD-Prometheus_MultiLang_PN_Stream3-Radar_V2.810.0000001.0.R.200326.bin
Released Mar 26, 2020 · V2.810.0000001.0.R · 5 devices · Dahua