Bose SOUNDLINK REVOLVE - Important Safety Instructions; Safety Guidelines and Precautions

Unplug the speaker from power
6. Connect the speaker to power.
7. Press and hold the Power button for 10 seconds.
8. While continuing to hold the Multi-function button, unplug the speaker from power.
9. Release the Multi-function button.
10. The system must be re-connected to power to complete reboot.