Dahua model
VTO7521G-S2
Dahua lists 6 firmware files for the VTO7521G-S2. 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
- 6
- Newest
- Oct 7, 2026
- Listed by
- Dahua
- Dahua device IDs
- 10
Vendor notes
- An earlier build still on Dahua's download server after the download center replaced it
Firmware
- DH_VTO75X95X_MultiLang_PN_SIP_EMEA_V4.600.0000000.6.R.260624.zipDownload
Released Oct 7, 2026 · V4.600.0000000.6.R · 10 devices · Dahua
- DH_VTO75X95X_MultiLang_PN_SIP_Asia_V4.600.0000000.5.R.250722.zipDownload
Released Jul 22, 2025 · V4.600.0000000.5.R · 10 devices · Dahua
- DH_VTO75X95X_MultiLang_PN_SIP_CEE-Nordic_V4.600.0000000.5.R.250722.zipDownload
Released Jul 22, 2025 · V4.600.0000000.5.R · 10 devices · Dahua
- DH_VTO75X95X_MultiLang_PN_SIP_EMEA_V4.600.0000000.5.R.250722.zipDownload
Released Jul 22, 2025 · V4.600.0000000.5.R · 10 devices · Dahua
- 1368311_DH_VTO75X95X_MultiLang_PN_SIP_CEE-Nordic_V4.600.0000000.0.R.220805.zipDownload
Released Sep 29, 2022 · V4.600.0000000.0.R · 10 devices · Dahua
- 1368321_DH_VTO75X95X_MultiLang_PN_SIP_Asia_V4.600.0000000.0.R.220805.zipDownload
Released Sep 29, 2022 · V4.600.0000000.0.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.