Firmware
DH_VTO65XXX-C-H-Freyja-A3_MultiLang_PN_V4.810.0000000.2.R.260612.zip
Dahua firmware released Oct 5, 2026. May work with 9 devices, including VTO6521F-V1, VTO6521H-D-V1, VTO6521H-V1.
- Released
- Oct 5, 2026
- Version
- V4.810.0000000.2.R
- Size
- 172.5 MB
- Hardware
- 9 devices
Download
Permanent copy on the Internet Archive (item page)
- MD5
f1da4c2ad9c46a2a0f24e45d52579fe9- SHA-256
876ff97a51d037fbcd93683100dc23049d3535ed48b8c75e5b7351e28a008bdb- Changelog
- Release notes
Where it's published
Available from
Dahua
Dahua Download Center
CurrentV4.810.0000000.2.R · Listed date Oct 5, 2026
Compatible hardware
Hardware IDs this firmware's installer accepts (9 devices).
- VTO6521F-V1
- VTO6521H-D-V1
- VTO6521H-V1
- VTO6521K-S2
- VTO6531F-V1
- VTO6531H-SH-V1
- VTO6531H-V1
- VTO6533H
- VTO6541H-V1
Where these IDs come from
- hwid in DH_VTO65XXX-C-H-Freyja-A3_MultiLang_PN_V4.810.0000000.2.R.260612.bin: the device's own hardware check list, 9 IDs
- Install in DH_VTO65XXX-C-H-Freyja-A3_MultiLang_PN_V4.810.0000000.2.R.260612.bin: the installer's device list (board families), 9 IDs, vendor General (not counted: a more specific list exists)
- check.img in DH_VTO65XXX-C-H-Freyja-A3_MultiLang_PN_V4.810.0000000.2.R.260612.bin: the device's own hardware check list, 9 IDs
Technical details
Read from inside the firmware (zip archive).
- Architecture
- arm
- OEM build
- General
- Image dates
- Jun 12, 2026
- Security
- Signed
- Language & video
- English by default · 35 languages · PAL
- Software version
- V4.810.0000000.2.R.260612
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 | — | 2026-06-12 |
| boot | 0x100000 | 0x200000 | 1.0 MB | dhboot.bin.img | — | 2026-06-12 |
| dtb | 0x600000 | 0xa00000 | 4.0 MB | dhdtb.bin.img | cramfs | 2026-06-12 |
| logo | 0x1700000 | 0x1800000 | 1.0 MB | logo.bin.img | — | 2026-06-12 |
| data | 0x1800000 | 0x6800000 | 80.0 MB | data-x.squashfs.img | squashfs | 2026-06-12 |
| pd | 0x6800000 | 0x7800000 | 16.0 MB | pd-x.squashfs.img | squashfs | 2026-06-12 |
| kernel | 0x7800000 | 0x8100000 | 9.0 MB | kernel.img | — | 2026-06-12 |
| rootfs | 0x8100000 | 0xb100000 | 48.0 MB | romfs-x.squashfs.img | squashfs | 2026-06-12 |
| web | 0xb100000 | 0xd100000 | 32.0 MB | web-x.squashfs.img | squashfs | 2026-06-12 |
| firmware | 0xd100000 | 0x17100000 | 160.0 MB | firmware-x.squashfs.img | squashfs | 2026-06-12 |
Related firmware
Other files for much of the same hardware, from any vendor.
- DH_VTO65XXX-C-H-Freyja-A3_MultiLang_PN_V4.810.0000000.1.R.250919.zip
Released Oct 27, 2025 · V4.810.0000000.1.R · 9 devices · Dahua
- DH_VTO65XXX-C-H-Freyja-A3_MultiLang_PN_V4.800.0000000.0.R.241122.bin
Released Nov 22, 2024 · V4.800.0000000.0.R · 9 devices · Global DS