(1) Ensure the toothbrush is fully charged. (2) Press and hold the power button for approximately 10 seconds. (3) Release the button and wait for the toothbrush to turn off. (4) Remember that the Oral-B iO is a sophisticated device, and some issues may require professional attention.

(1) If your refrigerator has a display panel, press the ice maker button for 10 seconds to reset it. Update (02/26/24): (1) Disconnect the icemaker from its power supply for a few minutes, then plug it back in. (2) If your icemaker has an ‘off’ switch, use it to reset the unit.