Dahua model
VTO6521F
Dahua lists 8 firmware files for the VTO6521F. 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
- 8
- Newest
- Oct 7, 2026
- Listed by
- Dahua
- Dahua device IDs
- 7
Vendor notes
- An earlier build still on Dahua's download server after the download center replaced it
Firmware
- DH_VTO65XXX_MultiLang_PN_SIP_EMEA_V4.600.0000000.6.R.260624.zipDownload
Released Oct 7, 2026 · V4.600.0000000.6.R · 7 devices · Dahua
- DH_VTO65XXX_MultiLang_PN_SIP_Asia_V4.600.0000000.5.R.250722.zipDownload
Released Aug 20, 2025 · V4.600.0000000.5.R · 7 devices · Dahua
- DH_VTO65XXX_MultiLang_PN_SIP_CEE-Nordic_V4.600.0000000.5.R.250722.zipDownload
Released Aug 20, 2025 · V4.600.0000000.5.R · 7 devices · Dahua
- DH_VTO65XXX_MultiLang_PN_SIP_EMEA_V4.600.0000000.5.R.250722.zipDownload
Released Jul 22, 2025 · V4.600.0000000.5.R · 7 devices · Dahua
- Customer_VTO65XXX_Eng_PN_SIP_EMEA_V4.600.150I003.0.R.240428.binDownload
Released May 28, 2025 · V4.600.150I003.0.R · 7 devices · Dahua
- 1368363_DH_VTO65XXX_MultiLang_PN_SIP_CEE-Nordic_V4.600.0000000.0.R.220805.zipDownload
Released Sep 29, 2022 · V4.600.0000000.0.R · 7 devices · Dahua
- 1368365_DH_VTO65XXX_MultiLang_PN_SIP_Asia_V4.600.0000000.0.R.220805.zipDownload
Released Sep 29, 2022 · V4.600.0000000.0.R · 7 devices · Dahua
- General_VTO6531H-MCU_V1.001.0000000.0.R.210908.zipDownload
Released Nov 24, 2021 · V1.001.0000000.0.R · Microcontroller firmware · 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.