Firmware
DH_VTHX421H_MultiLang_SIP_V4.400.0000000.7.R.20191209.bin
Cifra and Dahua firmware released Dec 9, 2019. May work with 7 devices, including VTH2421F, VTH2421F_R, VTH5221D-S.
- Released
- Dec 9, 2019
- Version
- V4.400.0000000.7.R
- Size
- 15.4 MB
- Hardware
- 7 devices
Download
Permanent copy on the Internet Archive (item page)
- MD5
7daf289970435beb3a1012d2fbe6916f- SHA-256
ebaf0a47b0e915ce79bc20a58544513fa471dcf3aad9e1e0a36d41d5039ea5ab
Where it's published
Sold as
- Folder: VDP/SIP2.0-FW/VTHX421H/4.400
V4.400.0000000.7.R · Listed date Dec 9, 2019
Sold as
V4.400.0000000.7.R · Listed date Dec 9, 2019
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 Dahua
Technical details
Read from inside the firmware (dahua package (zip variant)).
- Architecture
- arm
- OEM build
- Dahua
- Bootloader
- U-Boot 2011.09-rc1-svn4442
- Flash
- 40.0 MB
- Image dates
- Dec 9, 2019
- Security
- Signed
Flash layout: 13 partitions, 12 written by this firmware
From the firmware's partition table (partitionV2.txt).
| Partition | Start | End | Size | Image | Filesystem | Built |
|---|---|---|---|---|---|---|
| boot0 | 0x0 | 0x40000 | 256.0 KB | boot0.bin.img | — | 2019-12-09 |
| boot | 0x40000 | 0x280000 | 2.3 MB | uboot.bin.img | — | 2019-12-09 |
| mbr | 0x280000 | 0x2a0000 | 128.0 KB | mbr.img | — | 2019-12-09 |
| env | 0x2a0000 | 0x2c0000 | 128.0 KB | env-x.cramfs.img | cramfs | 2019-12-09 |
| updateflag | 0x2c0000 | 0x3c0000 | 1.0 MB | not written | — | — |
| partition(ro) | 0x3c0000 | 0x4c0000 | 1.0 MB | partition-x.cramfs.img | cramfs | 2019-12-09 |
| kernel | 0x4c0000 | 0x9c0000 | 5.0 MB | kernel-x.cramfs.img | cramfs | 2019-12-09 |
| romfs(ro) | 0x9c0000 | 0xec0000 | 5.0 MB | romfs-x.cramfs.img | squashfs | 2019-12-09 |
| logo(ro) | 0xec0000 | 0xee0000 | 128.0 KB | logo-x.cramfs.img | cramfs | 2019-12-09 |
| web(ro) | 0xee0000 | 0x13e0000 | 5.0 MB | web-x.cramfs.img | cramfs | 2019-12-09 |
| data(ro) | 0x13e0000 | 0x18e0000 | 5.0 MB | data-x.cramfs.img | cramfs | 2019-12-09 |
| usr(ro) | 0x18e0000 | 0x27e0000 | 15.0 MB | usr-x.cramfs.img | cramfs | 2019-12-09 |
| pd(ro) | 0x27e0000 | 0x2800000 | 128.0 KB | pd-x.cramfs.img | cramfs | 2019-12-09 |
Related firmware
Other files for much of the same hardware, from any vendor.
- General_VTHX421H_MultiLang_SIP_Asia_V4.810.0000000.4.R.260527.zip
Released Jun 12, 2026 · V4.810.0000000.4.R · 10 devices · Dahua
- General_VTHX421H_MultiLang_SIP_CEE-Nordic_V4.810.0000000.4.R.260527.zip
Released Jun 12, 2026 · V4.810.0000000.4.R · 10 devices · Dahua
- General_VTHX421H_MultiLang_SIP_EMEA_V4.810.0000000.4.R.260527.zip
Released Jun 12, 2026 · V4.810.0000000.4.R · 10 devices · Dahua
- DH_VTHX421H_MultiLang_SIP_Asia_V4.810.0000000.4.R.260527.zip
Released May 27, 2026 · V4.810.0000000.4.R · 10 devices · Dahua
- DH_VTHX421H_MultiLang_SIP_CEE-Nordic_V4.810.0000000.4.R.260527.zip
Released May 27, 2026 · V4.810.0000000.4.R · 10 devices · Dahua
- DH_VTHX421H_MultiLang_SIP_EMEA_V4.810.0000000.4.R.260527.zip
Released May 27, 2026 · V4.810.0000000.4.R · 10 devices · Dahua
- DH_VTHX421H_MultiLang_SIP_Asia_V4.810.0000000.3.R.260410.zip
Released Apr 10, 2026 · V4.810.0000000.3.R · 10 devices · Dahua
- DH_VTHX421H_MultiLang_SIP_CEE-Nordic_V4.810.0000000.3.R.260410.zip
Released Apr 10, 2026 · V4.810.0000000.3.R · 10 devices · Dahua