From Dahua Wiki
How to Locate Device Firmware
Note: Some devices will need multiple firmware updates to get the system up and running on the latest revision. If you are unable to locate your device's firmware using either Search Tools, your best option is to check the device's product page.
IP Camera Firmware Search Tool
If you are unable to locate your device's firmware, you can update your device with the IP Firmware Toolkit.
Method for Updating Firmware Links
Use these links to use a method for updating firmware:
- Update Firmware via Web Browser
- Update Firmware via ConfigTool
- Update Firmware via USB
- Update Camera Firmware via NVR
PLEASE NOTE: You cannot use IVS rules with H.264+ at this time.