Firmware

DHI_HYSA40A_Eng_MCU_V1.000.0000003.0.R.250519.zip

Dahua firmware released Jul 14, 2025. Microcontroller firmware.

Released: Jul 14, 2025
Version: V1.000.0000003.0.R
Size: 39.3 KB
Hardware: Microcontroller firmware

Download

Download firmware

Permanent copy on the Internet Archive (item page)

MD5: 57043d3952a05fb15fb5b1a158d48591
SHA-256: 77f70444e9300c2a31c2a76a39cad79a74ba7da99c7d59dc88a0a3cd601c48ab

Where it's published

Available from
Dahua
Dahua Download Center
Current
Sold as
- HY-SA40A
V1.000.0000003.0.R · Listed date Jul 14, 2025
Vendor link (materialfile.dahuasecurity.com)

Compatible hardware

This is microcontroller firmware (an Intel HEX image): it updates a small chip inside a device, such as a PTZ motor controller, door station or access controller, not the device's main system. It has no operating system and no list of supported hardware.