Dahua model
VTH2421FB/VTH2421FW
Dahua lists 3 firmware files for the VTH2421FB/VTH2421FW. This is the retail model name. Inside the firmware, Dahua uses its own device IDs, listed below, which can lead you to more compatible firmware.
- Firmware files
- 3
- Newest
- Jun 12, 2026
- Listed by
- Dahua
- Dahua device IDs
- 10
Firmware
- General_VTHX421H_MultiLang_SIP_Asia_V4.810.0000000.4.R.260527.zipDownload
Released Jun 12, 2026 · V4.810.0000000.4.R · 10 devices · Dahua
- General_VTHX421H_MultiLang_SIP_CEE-Nordic_V4.810.0000000.4.R.260527.zipDownload
Released Jun 12, 2026 · V4.810.0000000.4.R · 10 devices · Dahua
- General_VTHX421H_MultiLang_SIP_EMEA_V4.810.0000000.4.R.260527.zipDownload
Released Jun 12, 2026 · V4.810.0000000.4.R · 10 devices · Dahua
Dahua device IDs in this firmware
Compare these with the updateSerial your device reports. Each one links to every firmware found for that ID.