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Firmware

General_VTHX421H_Eng_SIP_V4.400.9902000.0.R.20200713.bin

Dahua firmware released Jul 13, 2020. May work with 7 devices, including VTH2421F, VTH2421F_R, VTH5221D-S.

Released
Jul 13, 2020
Version
V4.400.9902000.0.R
Size
15.4 MB
Hardware
7 devices

Download

Download firmware

Permanent copy on the Internet Archive (item page)

MD5
49aef0dd15ef0a61b8cdce599f66f808
SHA-256
e6abb7d6072c5f8e1c88f353929d3cf74a5f2471ff0b6d9f4c60a4c35c77f3eb

Where it's published

Compatible hardware

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

Where these IDs come from
  • Install: the installer's device list (board families), 7 IDs, vendor General

Technical details

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

Architecture
arm
OEM build
General
Bootloader
U-Boot 2011.09-rc1-svn4264
Flash
40.0 MB
Image dates
Jul 13, 2020
Security
Signed
Flash layout: 13 partitions, 12 written by this firmware

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

PartitionStartEndSizeImageFilesystemBuilt
boot00x00x40000256.0 KBboot0.bin.img—2020-07-13
boot0x400000x2800002.3 MBuboot.bin.img—2020-07-13
mbr0x2800000x2a0000128.0 KBmbr.img—2020-07-13
env0x2a00000x2c0000128.0 KBenv-x.cramfs.imgcramfs2020-07-13
updateflag0x2c00000x3c00001.0 MBnot written——
partition(ro)0x3c00000x4c00001.0 MBpartition-x.cramfs.imgcramfs2020-07-13
kernel0x4c00000x9c00005.0 MBkernel-x.cramfs.imgcramfs2020-07-13
romfs(ro)0x9c00000xec00005.0 MBromfs-x.cramfs.imgsquashfs2020-07-13
logo(ro)0xec00000xee0000128.0 KBlogo-x.cramfs.imgcramfs2020-07-13
web(ro)0xee00000x13e00005.0 MBweb-x.cramfs.imgcramfs2020-07-13
data(ro)0x13e00000x18e00005.0 MBdata-x.cramfs.imgcramfs2020-07-13
usr(ro)0x18e00000x27e000015.0 MBusr-x.cramfs.imgcramfs2020-07-13
pd(ro)0x27e00000x2800000128.0 KBpd-x.cramfs.imgcramfs2020-07-13

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