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Firmware

DH_IPC-HX1(2)4XX-Hertz2_Chn_PN_V2.860.0000000.5.R.250826.bin

Dahua firmware released Sep 24, 2025. May work with 17 devices, including IPC-B1A20-A-IL2, IPC-B1A40-A-IL2, IPC-B1E49-A-IL.

Released
Sep 24, 2025
Version
V2.860.0000000.5.R
Size
17.8 MB
Hardware
17 devices

Download

Download firmware

Permanent copy on the Internet Archive (item page)

MD5
49eb9b082ff78c45ff62cf813c22d430
SHA-256
f11f18960d0be8ed43167ef804244e2193ce626fd32697f3434a3bfc3ec56d7e

Where it's published

Compatible hardware

Hardware IDs this firmware's installer accepts (17 devices).

Where these IDs come from
  • hwid: the device's own hardware check list, 17 IDs
  • Install: the installer's device list (board families), 1 ID, vendor General (not counted: a more specific list exists)
  • check.img: the device's own hardware check list, 17 IDs

Technical details

Read from inside the firmware (dahua package (zip variant)).

SoC
SigmaStar SSC335
Architecture
arm
OEM build
General
Kernel
Linux 4.9.84
Bootloader
U-Boot 2010.06-svn14320
Flash
16.0 MB
Image dates
Aug 26, 2025
Security
Signed, not encrypted, security baseline V2.4
Language & video
SimpChinese by default · PAL
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—2025-08-26
hwid0xc00000xd000064.0 KBnot written——
partition(ro)0xd00000xe000064.0 KBpartition-x.cramfs.imgcramfs2025-08-26
Kernel0xe00000x2800001.6 MBkernel.img—2025-08-26
web(ro)0x2800000x7500004.8 MBkernel-aol.imgsquashfs2025-08-26
romfs(ro)0x7500000xef00007.6 MBromfs-x.squashfs.imgsquashfs2025-08-26
config0xef00000xf50000384.0 KBnot writtenjffs2—
backup0xf500000xfa0000320.0 KBnot writtenjffs2—
appdata0xfa00000xff0000320.0 KBnot written——
updateflag0xff00000x100000064.0 KBnot 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 V2.4 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.