Skip to content

Firmware

General_IPC-HX2(1)XXX-Sag_Eng_P_V2.622.0000000.3.R.180302.bin

Dahua firmware released Mar 2, 2018. May work with 7 devices, including IPC-HDBW1831R, IPC-HDBW1831R-S, IPC-HDBW2831R-ZAS-3711.

Released
Mar 2, 2018
Version
V2.622.0000000.3.R
Size
41.5 MB
Hardware
7 devices

Download

Download firmware

Permanent copy on the Internet Archive (item page)

MD5
0fc672b3ba3081b5a0f036145dc37072
SHA-256
0c25e020b0fd8202cc921d0825ec16d0e2e79e4b7d098b82d33a03f14776ec6f

Where it's published

Compatible hardware

Hardware IDs this firmware's installer accepts (7 devices).

Where these IDs come from
  • hwid: the device's own hardware check list, 7 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, 7 IDs

Technical details

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

Architecture
arm
OEM build
General
Kernel
Linux 3.0.8+
Bootloader
U-Boot 2010.06-svn5513
Flash
127.0 MB
Image dates
Mar 2, 2018
Security
Signed
Language & video
English by default · PAL
Flash layout: 15 partitions, 10 written by this firmware

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

PartitionStartEndSizeImageFilesystemBuilt
U-Boot0x2000000x3000001.0 MBdhboot.bin.img—2018-03-02
hwid0x3000000x4000001.0 MBnot written——
updateflag0x4000000x5000001.0 MBnot written——
partition(ro)0x5000000x6000001.0 MBpartition-x.cramfs.imgcramfs2018-03-02
custom(ro)0x6000000x7000001.0 MBcustom-x.squashfs.imgsquashfs2018-03-02
product(ro)0x7000000x8000001.0 MBpd-x.squashfs.imgsquashfs2018-03-02
Kernel0x8000000xa800002.5 MBkernel.img—2018-03-02
romfs(ro)0xa800000xc000001.5 MBromfs-x.squashfs.imgsquashfs2018-03-02
web(ro)0xc000000x14000008.0 MBweb-x.squashfs.imgsquashfs2018-03-02
user(ro)0x14000000x210000013.0 MBuser-x.squashfs.imgsquashfs2018-03-02
Kernelslv(ro)0x21000000x23800002.5 MBkernelslv.img—2018-03-02
romfsslv(ro)0x23800000x3c0000024.5 MBromfsslv-x.squashfs.imgsquashfs2018-03-02
syslog0x73000000x77000004.0 MBnot writtenubi—
config0x77000000x7b000004.0 MBnot writtenubi—
backup0x7b000000x7f000004.0 MBnot writtenubi—

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