Firmware

DH_VTHX521_Eng_SIP_V4.400.0000001.0.R.20210715.bin

Viatec and Dahua firmware released Jul 15, 2021. May work with 4 devices, including VTH1521CH, VTH1521G, VTH2521CH.

Released: Jul 15, 2021
Version: V4.400.0000001.0.R
Size: 11.4 MB
Hardware: 4 devices

Download

Download firmware

Permanent copy on the Internet Archive (item page)

MD5: c56a919543bb2e820f8d0bbadf27060d
SHA-256: 080b049b6cd6c9034e010546f9aea20977f23de758ea88ab43a3aa2f32a93212

Where it's published

Mirrored by
Viatec
Viatec (ftp.viatec.ua)
Mirror
Sold as
- VTHX521G
- Folder: VDP/SIP2.0-FW/VTHX521G
V4.400.0000001.0.R · Listed date Jul 15, 2021
Mirror link (ftp.viatec.ua)
Mirrored by
Dahua
Shared links (forums and cloud drives)
Mirror
Published as DH_VTHX521_Eng_SIP_V4.400.0000001.0.R.20210715 (3).bin (an identical file)
- Shared at https://www.dahuacctv.com/threads/%D0%9D%D1%83%D0%B6%D0%BD%D0%B0-%D0%BF%D1%80%D0%BE%D1%88%D0%B8%D0%B2%D0%BA%D0%B0-%D0%BD%D0%B0-%D0%BC%D0%BE%D0%BD%D0%B8%D1%82%D0%BE%D1%80-dhi-vth1521g.1112/
V4.400.0000001.0.R · Listed date Jul 15, 2021
Mirror link (Google Drive)

Compatible hardware

Hardware IDs this firmware's installer accepts (4 devices).

Where these IDs come from

Install: the installer's device list (board families), 4 IDs, vendor Dahua

Technical details

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

Architecture: arm
OEM build: Dahua
Image dates: Jul 15, 2021
Security: Signed, security baseline V2.0
Language & video: English by default · PAL

Flash layout: 9 partitions, 9 written by this firmware

From the image headers (only partitions this firmware writes).

Partition	Start	End	Size	Image	Filesystem	Built
uboot	0x0	0x40000	256.0 KB	uboot.bin.img	—	2021-07-15
env	0x40000	0x50000	64.0 KB	env-x.cramfs.img	cramfs	2021-07-15
dtb	0x60000	0x70000	64.0 KB	dtb.img	—	2021-07-15
kernel	0xd0000	0x290000	1.8 MB	kernel-x.cramfs.img	cramfs	2021-07-15
rootfs	0x290000	0x510000	2.5 MB	romfs-x.squashfs.img	squashfs	2021-07-15
web	0x510000	0x590000	512.0 KB	web-x.squashfs.img	squashfs	2021-07-15
data	0x590000	0x6f0000	1.4 MB	data-x.squashfs.img	squashfs	2021-07-15
usr	0x6f0000	0xef0000	8.0 MB	usr-x.squashfs.img	squashfs	2021-07-15
pd	0xef0000	0xf00000	64.0 KB	pd-x.squashfs.img	squashfs	2021-07-15

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.

Also published as

Byte-for-byte identical files under other names:

DH_VTHX521_Eng_SIP_V4.400.0000001.0.R.20210715 (3).bin

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

Customer_VTHX521_Rus_SIP_V4.400.10SO000.0.R.20210316 (1).bin
Released Mar 16, 2021 · V4.400.10SO000.0.R · 4 devices · Dahua