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Firmware

General_VTO3221E_MultiLang_PN_SIP_V4.400.0000000.3.R.20191019.bin

Dahua firmware released Oct 19, 2019. May work with 2 devices, including VTO3221E, VTO6221E.

Released
Oct 19, 2019
Version
V4.400.0000000.3.R
Size
16.8 MB
Hardware
2 devices

Download

Download firmware

Permanent copy on the Internet Archive (item page)

MD5
d989b747e9858469d98aa8819d1973a5
SHA-256
180fd6eed7e21575860aaeb459f577eed60d0027bf41e89d63189d8024d8a5a7

Where it's published

Compatible hardware

Hardware IDs this firmware's installer accepts (2 devices).

Where these IDs come from
  • hwid: the device's own hardware check list, 2 IDs
  • Install: the installer's device list (board families), 7 IDs, vendor General (not counted: a more specific list exists)
  • check.img: the device's own hardware check list, 2 IDs

Technical details

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

Architecture
arm
OEM build
General
Flash
126.0 MB
Image dates
Oct 19, 2019
Security
Signed, security baseline V2.0
Language & video
English by default · 11 languages · PAL
Supported languages (11)

English, Italian, Spanish, Russian, French, Germany, Portuguese, Turkey, Polish, Dutch, Ukrainian

Flash layout: 14 partitions, 9 written by this firmware

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

PartitionStartEndSizeImageFilesystemBuilt
U-Boot0x2000000x3000001.0 MBdhboot.bin.img—2019-10-19
hwid0x3000000x4000001.0 MBnot written——
updateflag0x4000000x5000001.0 MBnot written——
partition(ro)0x5000000x6000001.0 MBpartition-x.cramfs.imgcramfs2019-10-19
custom(ro)0x6000000x9800003.5 MBcustom-x.squashfs.imgsquashfs2019-10-19
product(ro)0x9800000xd000003.5 MBpd-x.squashfs.imgsquashfs2019-10-19
Kernel0xd000000x12000005.0 MBkernel.img—2019-10-19
romfs(ro)0x12000000x1a000008.0 MBromfs-x.squashfs.imgsquashfs2019-10-19
web(ro)0x1a000000x1e000004.0 MBweb-x.squashfs.imgsquashfs2019-10-19
data(ro)0x1e000000x22000004.0 MBdata-x.squashfs.imgsquashfs2019-10-19
user(ro)0x22000000x3b8000025.5 MBuser-x.squashfs.imgsquashfs2019-10-19
syslog0x72000000x76000004.0 MBnot writtenubi—
config0x76000000x7a000004.0 MBnot writtenyaffs2—
backup0x7a000000x7e000004.0 MBnot writtenyaffs2—

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 V2.0 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.