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Firmware

DH_IPC-WX-Web-Hertz2_EngRusSpn_PN_V2.800.0000000.23.R.250704.zip

Dahua firmware released Jul 25, 2025. May work with 20 devices, including IPC-B1A20-PV-V2, IPC-B1A20-W-B-V2, IPC-B1A20-WT-B-V2.

Released
Jul 25, 2025
Version
V2.800.0000000.23.R
Size
21.5 MB
Hardware
20 devices

Download

Download firmware

Permanent copy on the Internet Archive (item page)

MD5
c3f07649aa73290bb16156f6c1e76b7c
SHA-256
3edd9d71531fc4d53eedd385f0da563af70dbac1cb7d97344c4d0f43769406d9
Changelog
Release notes

Where it's published

Compatible hardware

Hardware IDs this firmware's installer accepts (20 devices).

Where these IDs come from
  • hwid in DH_IPC-WX-Web-Hertz2_EngRusSpn_PN_V2.800.0000000.23.R.250704.bin: the device's own hardware check list, 20 IDs
  • Install in DH_IPC-WX-Web-Hertz2_EngRusSpn_PN_V2.800.0000000.23.R.250704.bin: the installer's device list (board families), 1 ID, vendor General (not counted: a more specific list exists)
  • check.img in DH_IPC-WX-Web-Hertz2_EngRusSpn_PN_V2.800.0000000.23.R.250704.bin: the device's own hardware check list, 20 IDs
  • Install in web-x.squashfs.bin: the installer's device list (board families), 1 ID, vendor General (not counted: a more specific list exists)
  • check.img in web-x.squashfs.bin: the device's own hardware check list, 20 IDs

Technical details

Read from inside the firmware (bundle of several firmwares). This file bundles 2 firmware images.

DH_IPC-WX-Web-Hertz2_EngRusSpn_PN_V2.800.0000000.23.R.250704.bin

SoC
SigmaStar SSC335
Architecture
arm
OEM build
General
Kernel
Linux 4.9.84
Bootloader
U-Boot 2010.06-svn17449
Flash
16.0 MB
Image dates
Jul 4, 2025
Security
Signed, not encrypted, security baseline V2.3
Language & video
English by default · 3 languages · PAL
Supported languages (3)

English, Russian, Spanish

Flash layout: 11 partitions, 5 written by this firmware

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

PartitionStartEndSizeImageFilesystemBuilt
mini-Boot0x00x40000256.0 KBnot written——
U-Boot0x800000xc0000256.0 KBdhboot.bin.img—2025-07-04
hwid0xc00000xd000064.0 KBnot written——
partition(ro)0xd00000xe000064.0 KBpartition-x.cramfs.imgcramfs2025-07-04
Kernel0xe00000x2800001.6 MBkernel.img—2025-07-04
web(ro)0x2800000x7500004.8 MBkernel-aol.imgsquashfs2025-07-04
romfs(ro)0x7500000xef00007.6 MBromfs-x.squashfs.imgsquashfs2025-07-04
config0xef00000xf50000384.0 KBnot writtenjffs2—
backup0xf500000xfa0000320.0 KBnot writtenjffs2—
appdata0xfa00000xff0000320.0 KBnot written——
updateflag0xff00000x100000064.0 KBnot written——

web-x.squashfs.bin

Architecture
arm
OEM build
General
Image dates
Jul 4, 2025
Security
Signed, not encrypted, security baseline V2.3
Language & video
English by default · 3 languages · PAL
Supported languages (3)

English, Russian, Spanish

Flash layout: 1 partition, 1 written by this firmware

From the image headers (only partitions this firmware writes).

PartitionStartEndSizeImageFilesystemBuilt
web0x2800000x7500004.8 MBweb-x.squashfs.imgsquashfs2025-07-04

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 V2.3 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.