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Firmware

DH_IPC-HX1XXX-Hertz2_EngSpnRus_PN_V2.840.0000000.15.R.250730.zip

Dahua firmware released Aug 19, 2025. May work with 20 devices, including IPC-B12-A-I4, IPC-B13-A-I4, IPC-B14-A-I.

Released
Aug 19, 2025
Version
V2.840.0000000.15.R
Size
21.9 MB
Hardware
20 devices

Download

Download firmware

Permanent copy on the Internet Archive (item page)

MD5
a8452d0b63cd7d7165d25e1f5424f39f
SHA-256
47365295b4b944278fb422fb93be2f1b600f307c305e765a5614b9086ebf8f07
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-HX1XXX-Hertz2_EngSpnRus_PN_V2.840.0000000.15.R.250730.bin: the device's own hardware check list, 20 IDs
  • Install in DH_IPC-HX1XXX-Hertz2_EngSpnRus_PN_V2.840.0000000.15.R.250730.bin: the installer's device list (board families), 1 ID, vendor General (not counted: a more specific list exists)
  • check.img in DH_IPC-HX1XXX-Hertz2_EngSpnRus_PN_V2.840.0000000.15.R.250730.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-HX1XXX-Hertz2_EngSpnRus_PN_V2.840.0000000.15.R.250730.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 30, 2025
Security
Signed, not encrypted, security baseline V2.3
Language & video
English by default · 3 languages · PAL
Supported languages (3)

English, Spanish, Russian

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—2025-07-30
hwid0xc00000xd000064.0 KBnot written——
partition(ro)0xd00000xe000064.0 KBpartition-x.cramfs.imgcramfs2025-07-30
Kernel0xe00000x2800001.6 MBkernel.img—2025-07-30
web(ro)0x2800000x7500004.8 MBkernel-aol.imgsquashfs2025-07-30
romfs(ro)0x7500000xef00007.6 MBromfs-x.squashfs.imgsquashfs2025-07-30
config0xef00000xf50000384.0 KBnot writtenjffs2—
backup0xf500000xfa0000320.0 KBnot writtenjffs2—
dgs0xfa00000xff0000320.0 KBnot written——
updateflag0xff00000x100000064.0 KBnot written——

web-x.squashfs.bin

Architecture
arm
OEM build
General
Image dates
Jul 30, 2025
Security
Signed, not encrypted, security baseline V2.3
Language & video
English by default · 3 languages · PAL
Supported languages (3)

English, Spanish, Russian

Flash layout: 1 partition, 1 written by this firmware

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

PartitionStartEndSizeImageFilesystemBuilt
web0x2800000x7500004.8 MBweb-x.squashfs.imgsquashfs2025-07-30

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.