Dahua model
HY-SA21A-W2(868)
Dahua lists 1 firmware file for the HY-SA21A-W2(868). 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
- 1
- Newest
- Nov 11, 2025
- Listed by
- Dahua
Firmware
- DHI_HYSA21A-W2(868)_Eng_MCU_V1.000.0000007.0.R.20251106.zipDownload
Released Nov 11, 2025 · V1.000.0000007.0.R · Microcontroller firmware · Dahua