Apollo H-3 Installer

Install or reinstall the H-3's ESPHome firmware from Chrome or Edge on a computer.

Smart (Wi-Fi) connects to Home Assistant: change songs and LED effects, run automations, use the Bluetooth proxy and get firmware updates.
Basic (No Wi-Fi) is the firmware the ornament ships with: the buttons play the built-in songs, with no Wi-Fi or Bluetooth.

Before you install

Take the batteries out of the ornament.
Hold the boot button on the back, plug a USB-C data cable into the ornament and your computer, then let go of the button. (Boot mode guide)

H-3 Smart (Wi-Fi) Firmware

H-3 Basic (No Wi-Fi) Firmware

After you install

Unplug the USB cable and plug it back in so the ornament restarts normally. After a fresh install, all its LEDs light green for about 5 seconds, then turn off on their own.
Smart firmware only: connect the ornament to Wi-Fi. Until it is connected, its hat blinks blue to show it is ready to set up. Click Connect above again and enter your Wi-Fi details, join the Apollo H3 Hotspot network from a phone, or set it up from Home Assistant over Bluetooth (Improv via BLE). Home Assistant then discovers the ornament.

Factory reset: hold the boot button for 10 seconds or more, then release it. If the ornament is asleep, wake it with a song button first, start the hold right away and let go before the song ends. This erases the Wi-Fi details and every saved setting.