Firmware
General_VTHX421H_MultiLang_SIP_V4.500.0000000.7.R.201120.zip
ASM and ip-phone-forum.de firmware released Nov 20, 2020. May work with 10 devices, including VTH2421F, VTH2421FS-SH, VTH2421F_R.
- Released
- Nov 20, 2020
- Version
- V4.500.0000000.7.R
- Size
- 17.0 MB
- Hardware
- 10 devices
Download
Permanent copy on the Internet Archive (item page)
- MD5
10e6e25c84196ffdc1b09dbac42fd31a- SHA-256
ff50661f6331962273e3773f0f4e32161e3b55aeee8fe0b7d06aa98828df20bc
Where it's published
- Folder: videovratni/stare_firmwary_nepouzivat/VTH2421FB-P/V4.500
- Folder: videovratni/stare_firmwary_nepouzivat/VTH2421FW-P/V4.5/201120_CZ
- Folder: videovratni/stare_firmwary_nepouzivat/VTH5221DW-S2/Firmware/V4.500
- Folder: videovratni/stare_firmwary_nepouzivat/VTH5421EW-H/V4.500
- Folder: videovratni/stare_firmwary_nepouzivat/VTH5441G/FW 4.500
V4.500.0000000.7.R · Listed date Nov 20, 2020
Previously at 4 other addresses
- https://ftp.asm.cz/Dahua/videovratni/stare_firmwary_nepouzivat/VTH2421FB-P/V4.500/General_VTHX421H_MultiLang_SIP_V4.500.0000000.7.R.201120.zip (last seen Oct 22, 2026)
- https://ftp.asm.cz/Dahua/videovratni/stare_firmwary_nepouzivat/VTH2421FW-P/V4.5/201120_CZ/General_VTHX421H_MultiLang_SIP_V4.500.0000000.7.R.201120.zip (last seen Oct 22, 2026)
- https://ftp.asm.cz/Dahua/videovratni/stare_firmwary_nepouzivat/VTH5221DW-S2/Firmware/V4.500/General_VTHX421H_MultiLang_SIP_V4.500.0000000.7.R.201120.zip (last seen Oct 22, 2026)
- https://ftp.asm.cz/Dahua/videovratni/stare_firmwary_nepouzivat/VTH5421EW-H/V4.500/General_VTHX421H_MultiLang_SIP_V4.500.0000000.7.R.201120.zip (last seen Oct 22, 2026)
Published as
VTH2421FW-P_MultiLang_SIP_V4.500_201120.zip(an identical file)- ip-phone-forum.de thread 305121
Compatible hardware
Hardware IDs this firmware's installer accepts (10 devices).
- VTH2421F
- VTH2421FS-SH
- VTH2421F_R
- VTH5221D-S
- VTH5221D-S-SH
- VTH5241D-S
- VTH5241D-S-SH
- VTH5421CH
- VTH5421E-H
- VTH5441G
Where these IDs come from
- Install in General_VTHX421H_MultiLang_SIP_V4.500.0000000.7.R.201120.bin: the installer's device list (board families), 10 IDs, vendor General
Technical details
Read from inside the firmware (zip archive).
- Architecture
- arm
- OEM build
- General
- Bootloader
- U-Boot 2011.09-rc1-svn5061
- Flash
- 40.0 MB
- Image dates
- Nov 20, 2020
- Security
- Signed, security baseline V2.1
- Language & video
- English by default · 15 languages · PAL
Supported languages (15)
English, Russian, Turkey, Italian, French, German, Dutch, Spanish, Portuguese, Polish, Ukrainian, Arabic, Vietnamese, SpanishEU, PortugalBR
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 | — | 2020-11-20 |
| boot | 0x40000 | 0x280000 | 2.3 MB | uboot.bin.img | — | 2020-11-20 |
| mbr | 0x280000 | 0x2a0000 | 128.0 KB | mbr.img | — | 2020-11-20 |
| env | 0x2a0000 | 0x2c0000 | 128.0 KB | env-x.cramfs.img | cramfs | 2020-11-20 |
| updateflag | 0x2c0000 | 0x3c0000 | 1.0 MB | not written | — | — |
| partition(ro) | 0x3c0000 | 0x4c0000 | 1.0 MB | partition-x.cramfs.img | cramfs | 2020-11-20 |
| kernel | 0x4c0000 | 0x9c0000 | 5.0 MB | kernel-x.cramfs.img | cramfs | 2020-11-20 |
| romfs(ro) | 0x9c0000 | 0xec0000 | 5.0 MB | romfs-x.cramfs.img | squashfs | 2020-11-20 |
| logo(ro) | 0xec0000 | 0xee0000 | 128.0 KB | logo-x.cramfs.img | cramfs | 2020-11-20 |
| web(ro) | 0xee0000 | 0x13e0000 | 5.0 MB | web-x.cramfs.img | cramfs | 2020-11-20 |
| data(ro) | 0x13e0000 | 0x18e0000 | 5.0 MB | data-x.cramfs.img | cramfs | 2020-11-20 |
| usr(ro) | 0x18e0000 | 0x27e0000 | 15.0 MB | usr-x.cramfs.img | cramfs | 2020-11-20 |
| pd(ro) | 0x27e0000 | 0x2800000 | 128.0 KB | pd-x.cramfs.img | cramfs | 2020-11-20 |
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 V2.1 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:
- VTH2421FW-P_MultiLang_SIP_V4.500_201120.zip
Related firmware
Other files for much of the same hardware, from any vendor.
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