Firmware
DH_VTO66-Freyja-A3_MultiLang_PN_V4.820.0000000.2.R.260707.zip
Dahua firmware released Jul 19, 2026. May work with 1 device, including VTO6631Q-WP.
- Released
- Jul 19, 2026
- Version
- V4.820.0000000.2.R
- Size
- 182.8 MB
- Hardware
- 1 device
Download
Download firmware
Permanent copy on the Internet Archive (item page)
- MD5
2e4e615ce661204c4b332f008adcd409- SHA-256
ae9599650c4da58ddf668bc3e812cb51c150d954d78b6ad774d1a9f852628c7a- Changelog
- Release notes
Where it's published
Available from
Dahua
Dahua Download Center
CurrentV4.820.0000000.2.R · Listed date Jul 19, 2026
Compatible hardware
Hardware IDs this firmware's installer accepts (1 device).
Where these IDs come from
- hwid in DH_VTO66-Freyja-A3_MultiLang_PN_V4.820.0000000.2.R.260707.bin: the device's own hardware check list, 1 ID
- Install in DH_VTO66-Freyja-A3_MultiLang_PN_V4.820.0000000.2.R.260707.bin: the installer's device list (board families), 13 IDs, vendor General (not counted: a more specific list exists)
- check.img in DH_VTO66-Freyja-A3_MultiLang_PN_V4.820.0000000.2.R.260707.bin: the device's own hardware check list, 1 ID
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 |