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Firmware

DH_TPC-SD-Prometheus-V1_Stream3_PART_V2.800.0000000.4.R.250905.zip

Dahua firmware released Sep 10, 2025. May work with 88 devices, including CA-HZ2020XB-A, CA-HZ2023XA-A, CA-HZ2023XA-B.

Released
Sep 10, 2025
Version
V2.800.0000000.4.R
Size
170.8 MB
Hardware
88 devices

Download

Download firmware

Permanent copy on the Internet Archive (item page)

MD5
5129ca5dcd4a3270fdd1c54d0cd69687
SHA-256
eb0041e98a4bebeeaf0dddec69a1d50452a3562de8a636da4bd1abd577ed6227
Changelog
Release notes

Where it's published

Compatible hardware

Hardware IDs this firmware's installer accepts (88 devices).

Where these IDs come from
  • hwid in DH_TPC-SD-Prometheus-V1_Stream3_PART_V2.800.0000000.4.R.250905.bin: the device's own hardware check list, 88 IDs
  • Install in DH_TPC-SD-Prometheus-V1_Stream3_PART_V2.800.0000000.4.R.250905.bin: the installer's device list (board families), 4 IDs, vendor Dahua (not counted: a more specific list exists)
  • check.img in DH_TPC-SD-Prometheus-V1_Stream3_PART_V2.800.0000000.4.R.250905.bin: the device's own hardware check list, 88 IDs

Technical details

Read from inside the firmware (zip archive).

Architecture
arm
OEM build
Dahua
Flash
3.5 GB
Image dates
Sep 5, 2025
Security
Signed, encrypted, security baseline V2.1
Flash layout: 20 partitions, 7 written by this firmware

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

PartitionStartEndSizeImageFilesystemBuilt
U-Boot0x2000000x3000001.0 MBdhboot.bin.img—2025-09-05
hwid0x3000000x4000001.0 MBnot written——
updateflag0x4000000x5000001.0 MBnot written——
partition(ro)0x5000000x6000001.0 MBpartition-x.cramfs.imgcramfs2025-09-05
lens0x6000000x8000002.0 MBnot written——
Kernel0x8000000x180000016.0 MBkernel.img—2025-09-05
custom(ro)0x18000000x1c000004.0 MBcustom-x.squashfs.imgsquashfs2025-09-05
product(ro)0x1c000000x20000004.0 MBpd-x.squashfs.imgsquashfs2025-09-05
romfs(ro)0x20000000x16000000320.0 MBromfs-x.squashfs.imgsquashfs2025-09-05
web(ro)0x160000000x1800000032.0 MBweb-x.squashfs.imgsquashfs2025-09-05
coredump0x2f9000000x3c100000200.0 MBnot written——
dgs0x3c1000000x3c9000008.0 MBnot written——
model0x3c9000000x53900000368.0 MBnot written——
reserve0x539000000x5590000032.0 MBnot written——
ext0x560000000x5c00000096.0 MBnot written——
devconfig0x5c0000000x5d00000016.0 MBnot written——
syslog0x5d0000000x5e00000016.0 MBnot written——
config0x5e0000000x5f00000016.0 MBnot written——
backup0x5f0000000x6000000016.0 MBnot written——
appdata0x600000000xe00000002.0 GBnot 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 V2.1 may refuse this file, and after installing it you may not be able to downgrade to firmware with a lower baseline.

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