Firmware
DH_ASCX2XX-A-RUSSELL-02_MultiLang_PN_V3.004.0000000.0.R.260630.zip
Dahua firmware released Aug 1, 2026. May work with 14 devices, including ASC21B-DF, ASC21C-D, ASC21C-DBF.
- Released
- Aug 1, 2026
- Version
- V3.004.0000000.0.R
- Size
- 34.3 MB
- Hardware
- 14 devices
Download
Download firmware
Permanent copy on the Internet Archive (item page)
- MD5
33234ddb577989d094367086462b4da6- SHA-256
e8ab98e548619b1eaaf7936d9cb7a045560d78aab9b8f2533468469620610615- Changelog
- Release notes
Where it's published
Available from
Dahua
Dahua Download Center
CurrentV3.004.0000000.0.R · Listed date Aug 1, 2026
Vendor link (materialfile.dahuasecurity.com)
Previously at 1 other address
Compatible hardware
Hardware IDs this firmware's installer accepts (14 devices).
- ASC21B-DF
- ASC21C-D
- ASC21C-DBF
- ASC21C-DF
- ASC22B-DF
- ASC22C-D
- ASC22C-DBF
- ASC22C-DF
- ASC24B-SF
- ASC24C-D
- ASC24C-DBF
- ASC24C-DF
- ASC24C-SBF
- ASC620XC
Where these IDs come from
- hwid in DH_ASCX2XX-A-RUSSELL-02_MultiLang_PN_V3.004.0000000.0.R.260630.bin: the device's own hardware check list, 14 IDs
- Install in DH_ASCX2XX-A-RUSSELL-02_MultiLang_PN_V3.004.0000000.0.R.260630.bin: the installer's device list (board families), 14 IDs, vendor General (not counted: a more specific list exists)
- check.img in DH_ASCX2XX-A-RUSSELL-02_MultiLang_PN_V3.004.0000000.0.R.260630.bin: the device's own hardware check list, 14 IDs
Technical details
Read from inside the firmware (zip archive).
- Architecture
- arm
- OEM build
- General
- Bootloader
- U-Boot 2016.11
- Image dates
- Jun 30, 2026
- Security
- Signed
- Language & video
- English by default · 19 languages · PAL
- Software version
- V3.004.0000000.0.R.260630
Supported languages (19)
Arabic, English, French, PortugalBR, Russian, SpanishEU, Dutch, Greek, Hungarian, Italian, Polish, Portuguese, Romanian, Serbian, Slovakian, TradChinese, Turkey, Spanish, German
Flash layout: 7 partitions, 7 written by this firmware
From the image headers (only partitions this firmware writes).
| Partition | Start | End | Size | Image | Filesystem | Built |
|---|---|---|---|---|---|---|
| boot | 0x1000000 | 0x1400000 | 4.0 MB | dhboot.bin.img | — | 2026-06-30 |
| dtb | 0x2200000 | 0x2600000 | 4.0 MB | dhdtb.bin.img | cramfs | 2026-06-30 |
| data | 0x3300000 | 0x3d00000 | 10.0 MB | data-x.squashfs.img | squashfs | 2026-06-30 |
| pd | 0x3d00000 | 0x4d00000 | 16.0 MB | pd-x.squashfs.img | squashfs | 2026-06-30 |
| kernel | 0x4d00000 | 0x5500000 | 8.0 MB | kernel.img | — | 2026-06-30 |
| rootfs | 0x5500000 | 0x8500000 | 48.0 MB | romfs-x.squashfs.img | squashfs | 2026-06-30 |
| web | 0x8500000 | 0xc500000 | 64.0 MB | web-x.squashfs.img | squashfs | 2026-06-30 |