Firmware
DH_VTO7-9-Freyja-A3_MultiLang_PN_V4.820.0000000.2.R.260707.zip
Dahua firmware released Jul 18, 2026. May work with 12 devices, including VTO7531G-4G-V2, VTO7531G-V2, VTO7541G-V2.
- Released
- Jul 18, 2026
- Version
- V4.820.0000000.2.R
- Size
- 190.1 MB
- Hardware
- 12 devices
Download
Permanent copy on the Internet Archive (item page)
- MD5
c1098380387598732aabf2a586b2bab7- SHA-256
78500b45f22c802899565a12bf2712978a0b1ce3f03be1d55030412ee91da060- Changelog
- Release notes
Where it's published
Available from
Dahua
Dahua Download Center
CurrentV4.820.0000000.2.R · Listed date Jul 18, 2026
Compatible hardware
Hardware IDs this firmware's installer accepts (12 devices).
- VTO7531G-4G-V2
- VTO7531G-V2
- VTO7541G-V2
- VTO7631M
- VTO7631Q
- VTO7641M-MF
- VTO9531D-V2
- VTO9541D-V2
- VTO9551D-V2
- VTO9631M
- VTO9631Q
- VTO9641M-MF
Where these IDs come from
- hwid in DH_VTO7-9-Freyja-A3_MultiLang_PN_V4.820.0000000.2.R.260707.bin: the device's own hardware check list, 12 IDs
- Install in DH_VTO7-9-Freyja-A3_MultiLang_PN_V4.820.0000000.2.R.260707.bin: the installer's device list (board families), 12 IDs, vendor General (not counted: a more specific list exists)
- check.img in DH_VTO7-9-Freyja-A3_MultiLang_PN_V4.820.0000000.2.R.260707.bin: the device's own hardware check list, 12 IDs
Technical details
Read from inside the firmware (zip archive).
- Architecture
- arm
- OEM build
- General
- Image dates
- Jul 7, 2026
- Security
- Signed
- Language & video
- English by default · 35 languages · PAL
- Software version
- V4.820.0000000.2.R.260707
Supported languages (35)
English, BritishEnglish, Italian, Spanish, Russian, French, German, Portuguese, Turkey, Dutch, Ukrainian, Arabic, SpanishEU, PortugalBR, Polish, Romanian, Hungarian, Finnish, Dansk, Czechish, Bulgaria, Slovakian, Slovenia, Greek, Serbian, Lithuanian, Latvian, Hebrew, TradChinese, TradChinese2, Japanese, Korean, Vietnamese, Thai, Kazakh
Flash layout: 10 partitions, 10 written by this firmware
From the image headers (only partitions this firmware writes).
| Partition | Start | End | Size | Image | Filesystem | Built |
|---|---|---|---|---|---|---|
| dhboot-min | 0x0 | 0x100000 | 1.0 MB | dhboot-min.bin.img | — | 2026-07-07 |
| boot | 0x100000 | 0x200000 | 1.0 MB | dhboot.bin.img | — | 2026-07-07 |
| dtb | 0x600000 | 0xa00000 | 4.0 MB | dhdtb.bin.img | cramfs | 2026-07-07 |
| logo | 0x1700000 | 0x1800000 | 1.0 MB | logo.bin.img | — | 2026-07-07 |
| data | 0x1800000 | 0x6800000 | 80.0 MB | data-x.squashfs.img | squashfs | 2026-07-07 |
| pd | 0x6800000 | 0x7800000 | 16.0 MB | pd-x.squashfs.img | squashfs | 2026-07-07 |
| kernel | 0x7800000 | 0x8100000 | 9.0 MB | kernel.img | — | 2026-07-07 |
| rootfs | 0x8100000 | 0xb100000 | 48.0 MB | romfs-x.squashfs.img | squashfs | 2026-07-07 |
| web | 0xb100000 | 0xd100000 | 32.0 MB | web-x.squashfs.img | squashfs | 2026-07-07 |
| firmware | 0xd100000 | 0x17100000 | 160.0 MB | firmware-x.squashfs.img | squashfs | 2026-07-07 |