Firmware
DH_VTO65XXX-C-H-Freyja-A3_MultiLang_PN_V4.810.0000000.1.R.250919.zip
Dahua firmware released Oct 27, 2025. May work with 9 devices, including VTO6521F-V1, VTO6521H-D-V1, VTO6521H-V1.
- Released
- Oct 27, 2025
- Version
- V4.810.0000000.1.R
- Size
- 172.2 MB
- Hardware
- 9 devices
Download
Permanent copy on the Internet Archive (item page)
- MD5
7c7bf3c9e07ed07a42d7c5e1fd21ae81- SHA-256
d56b80e77475e6357bfed52abac8dbebeff99238a3b6d9d90ea71d0123cff3d2- Changelog
- Release notes
Where it's published
Available from
Dahua
Dahua Download Center
No longer listedV4.810.0000000.1.R · Listed date Oct 27, 2025
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_V4.810.0000000.1.R.250919.bin: the device's own hardware check list, 9 IDs
- Install in DH_VTO65XXX-C-H-Freyja-A3_MultiLang_PN_V4.810.0000000.1.R.250919.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_V4.810.0000000.1.R.250919.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
- Sep 19, 2025
- Security
- Signed
- Language & video
- English by default · 35 languages · PAL
- Software version
- V4.810.0000000.1.R.250919
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 | — | 2025-09-19 |
| boot | 0x100000 | 0x200000 | 1.0 MB | dhboot.bin.img | — | 2025-09-19 |
| dtb | 0x600000 | 0xa00000 | 4.0 MB | dhdtb.bin.img | cramfs | 2025-09-19 |
| logo | 0x1700000 | 0x1800000 | 1.0 MB | logo.bin.img | — | 2025-09-19 |
| data | 0x1800000 | 0x6800000 | 80.0 MB | data-x.squashfs.img | squashfs | 2025-09-19 |
| pd | 0x6800000 | 0x7800000 | 16.0 MB | pd-x.squashfs.img | squashfs | 2025-09-19 |
| kernel | 0x7800000 | 0x8100000 | 9.0 MB | kernel.img | — | 2025-09-19 |
| rootfs | 0x8100000 | 0xb100000 | 48.0 MB | romfs-x.squashfs.img | squashfs | 2025-09-19 |
| web | 0xb100000 | 0xd100000 | 32.0 MB | web-x.squashfs.img | squashfs | 2025-09-19 |
| firmware | 0xd100000 | 0x17100000 | 160.0 MB | firmware-x.squashfs.img | squashfs | 2025-09-19 |
Related firmware
Other files for much of the same hardware, from any vendor.
- DH_VTO65XXX-C-H-Freyja-A3_MultiLang_PN_V4.810.0000000.2.R.260612.zip
Released Oct 5, 2026 · V4.810.0000000.2.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