- Unplug the power supply from the speaker cube.
- With the speaker unplugged and unpowered, press and hold the Power/Mode button.
- While holding the Power/Mode button, connect the speaker to AC power.
- Continue holding the Power/Mode button for ten seconds, until the speaker cube's LEDs flash green.
Note: Restoring the speaker's factory defaults erases all paired Bluetooth devices from the speaker's memory.