Retail model
VTH2421FW-P
ASM and Global DS and Santronic lists 7 firmware files for the VTH2421FW-P. 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
- 7
- Newest
- Nov 28, 2025
- Listed by
- ASM, Global DS, Santronic
- Dahua device IDs
- 10
Vendor notes
- Folder: videovratni/stare_firmwary_nepouzivat/VTH2421FW-P
- VTH5441 Firmware
- Firmware
- Folder: videovratni/stare_firmwary_nepouzivat/VTH2421FW-P/V4.6
- Folder: videovratni/stare_firmwary_nepouzivat/VTH5221DW-S2/Firmware/V4.600
- Folder: videovratni/stare_firmwary_nepouzivat/VTH5421EW-H/V4.600
- Folder: videovratni/stare_firmwary_nepouzivat/VTH2421FB-P/V4.510
- Folder: videovratni/stare_firmwary_nepouzivat/VTH2421FW-P/V4.51
- Folder: videovratni/stare_firmwary_nepouzivat/VTH5221DW-S2/Firmware/V4.510_bez_cestiny
- Folder: VDP - IP video kaputelefonok/SIP 2.0 (V4.5) A régi VT-s eszközökhöz NEM használható!!!!/VTH - Beltéri monitorok/VTH2421FB;VTH2421FW;VTH5221D-S2;VTH5221DW-S2;VTH5441G;VTH2421FW-P;VTH5421E-H;VTH5421EW-H
Firmware
- DH_VTHX421H_MultiLang_SIP_CEE-Nordic_V4.810.0000000.2.R.251128.zipDownload
Released Nov 28, 2025 · V4.810.0000000.2.R · 10 devices · ASM, Dahua
- DH_VTHX421H_MultiLang_SIP_EMEA_V4.810.0000000.1.R.250915.zipDownload
Released Sep 15, 2025 · V4.810.0000000.1.R · 10 devices · Santronic
- DH_VTHX421H_MultiLang_SIP_EMEA_V4.700.0000000.1.R.231130.zipDownload
Released Jan 4, 2024 · V4.700.0000000.1.R · 10 devices · Dahua, Santronic
- 1942554266821.zipDownload
Released Aug 19, 2022 · V4.600.0000000.0.R · 10 devices · Dahua, Global DS, ASM
- DH_VTHX421H_MultiLang_SIP_V4.510.0000000.0.R.220111.zipDownload
Released Jan 11, 2022 · V4.510.0000000.0.R · 10 devices · ASM, Dahua
- General_VTHX421H_MultiLang_SIP_V4.500.0000002.0.R.210713.binDownload
Released Jul 13, 2021 · V4.500.0000002.0.R · 10 devices · Global DS
- General_VTHX421H-data_MultiLang_Eng_SIP_PART_V4.500.0000002.0.R.20210520.binDownload
Released May 20, 2021 · V4.500.0000002.0.R · 10 devices · Global DS
Dahua device IDs in this firmware
Compare these with the updateSerial your device reports. Each one links to every firmware found for that ID.