Inaxsys model
INS644K
Inaxsys lists 7 firmware files for the INS644K. 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
- Jan 30, 2026
- Listed by
- Inaxsys
- Dahua device IDs
- 1
Firmware
- Customer_NVR5XXX-EI_EngFrn_PN_Inaxsys_V4.000.1002001.0.R.231130.zipDownload
Released Jan 30, 2026 · V4.000.1002001.0.R · Encrypted firmware · Inaxsys
- Customer_NVR6XX-4KS2_EngFrn_Inaxsys_V4.002.1002000.0.R.220507.BINDownload
Released Jan 30, 2026 · V4.002.1002000.0.R · 1 device · Inaxsys
- General_NVR6XX-4KS2_MultiLang_V4.002.0000000.3.R.240729.BINDownload
Released Jul 29, 2024 · V4.002.0000000.3.R · 1 device · Inaxsys, ENS Security, EmpireTech, Dahua
- Customer_NVR6XX-4KS2_EngFrn_Inaxsys_V4.002.1002000.0.R.220507.zipDownload
Released Dec 12, 2022 · V4.002.1002000.0.R · 1 device · Inaxsys
- Customer_NVR6XX-4KS2_EngFrn_Inaxsys_V4.001.1002000.0.R.210713.zipDownload
Released Feb 16, 2022 · V4.001.1002000.0.R · 1 device · Inaxsys
- NVR6XX-4KS2.200812.binDownload
Released Aug 12, 2020 · 1 device · GSS, Inaxsys, Winic
- General_NVR6XX-4KS2_Eng_V3.210.0004.0.T.161229.BINDownload
Released Nov 1, 2017 · V3.210.0004.0.T · 1 device · Inaxsys
Dahua device IDs in this firmware
Compare these with the updateSerial your device reports. Each one links to every firmware found for that ID.