Jeff-I Firmware & Support Center
Download the latest firmware updates and technical documentation to keep your Jeff-I controller at peak performance.
Version 1.3 - Major Update [March 2026]
- Zero-Config Integration: Introducing native MQTT Auto-Discovery for instant setup.
- 6 Dedicated Entities: Real-time monitoring and control for Water Temp, Main Pump, Heater, CO2, Drain Valve, and Fill Valve.
- 100% Local Control: No cloud dependency, ensuring millisecond response times even offline.
The core system logic for Jeff-I V1.3.
Contains the Web UI, Home Assistant discovery configs, and icons.
Installation Note: To ensure all V1.3 features (including the new Home Assistant entities) work correctly, you MUST upload both files via the Web UI’s update page.
I. Upload firmware.bin first and wait for the device to reboot.
II. Upload littlefs.bin to refresh the Web interface and MQTT configs.
Need Technical Support?
Reach out to our team via [WhatsApp] or [Email].
Version 1.3.1 - Major Update [April 2026]
Extension Settings Persistence: Fixed an issue where the names and timer configurations for “Custom 1” and “Custom 2” extension devices were lost. All custom settings are now securely written to permanent flash memory and will survive reboots and power outages.
Tip: Remember to clear your browser cache (or press Ctrl+F5/Cmd+R) after the update to ensure the new v1.3.1 web interface loads correctly.
Version 1.4 - Major Update [April 2026]
Introduced “Full-Scene Device Linkage” and a brand-new “Smart Light Hub”
Tip: Remember to clear your browser cache (or press Ctrl+F5/Cmd+R) after the update to ensure the new web interface loads correctly.
AbyssCore v1.2 - [May 2026]
AbyssCore — The Open-Ecosystem Brain for Your Reef
Stop buying isolated gadgets. AbyssCore by VIV is here to unify your reef tank with professional-grade automation and native third-party integration.
Tip: Remember to clear your browser cache (or press Ctrl+F5/Cmd+R) after the update to ensure the new web interface loads correctly.
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