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Firmware

dh_ipc-hx4xxx-eos_eng_p_stream3_v2.622.0000000.31.r.171214.bin

Dahua firmware released Dec 14, 2017. May work with 85 devices, including IPC-HDBW4231R-VF, IPC-HDBW4231R-VFAS, IPC-HDBW4231R-Z.

Released
Dec 14, 2017
Version
V2.622.0000000.31
Size
13.2 MB
Hardware
85 devices

Download

Download firmware

Permanent copy on the Internet Archive (item page)

MD5
51e41d6a2ed01705a5f91e2346fdd394
SHA-256
6cae3cdf64bad66664dbbaebb2b82f226d4a8c2f968628d76726fa4ad7bbc4ee

Where it's published

Compatible hardware

Hardware IDs this firmware's installer accepts (85 devices).

Where these IDs come from
  • hwid: the device's own hardware check list, 85 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, 85 IDs

Technical details

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

SoC
HiSilicon Hi3516A
Architecture
arm
OEM build
General
Kernel
Linux 3.4.35
Bootloader
U-Boot 2010.06-svn4537
Flash
16.0 MB
Image dates
Dec 14, 2017
Security
Signed, not encrypted
Language & video
English by default · PAL
Flash layout: 13 partitions, 8 written by this firmware

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

PartitionStartEndSizeImageFilesystemBuilt
U-Boot0x900000xc0000192.0 KBdhboot.bin.img—2017-12-14
hwid0xc00000xe0000128.0 KBnot written——
updateflag0xe00000x110000192.0 KBnot written——
partition(ro)0x1100000x130000128.0 KBpartition-x.cramfs.imgcramfs2017-12-14
custom(ro)0x1300000x150000128.0 KBcustom-x.squashfs.imgsquashfs2017-12-14
product(ro)0x1500000x170000128.0 KBpd-x.squashfs.imgsquashfs2017-12-14
Kernel0x1700000x2f00001.5 MBkernel.img—2017-12-14
romfs(ro)0x2f00000x3d0000896.0 KBromfs-x.squashfs.imgsquashfs2017-12-14
web(ro)0x3d00000x6500002.5 MBweb-x.squashfs.imgsquashfs2017-12-14
user(ro)0x6500000xf100008.8 MBuser-x.squashfs.imgsquashfs2017-12-14
syslog0xf100000xf60000320.0 KBnot writtenjffs2—
config0xf600000xfb0000320.0 KBnot writtenjffs2—
backup0xfb00000x1000000320.0 KBnot writtenjffs2—

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