Troubleshooting Reset your Sonicare to the original factory settings. Sometimes you have no idea how it happened, but the settings of your Philips Sonicare toothbrush are all off. Discover how to get it back to normal. To reset the handle to the default settings, follow the procedure below: Place your handle on your charger that is plugged in to a live outlet Hold the Power button, the Up sensitivity button (+) and the Mode button for 2 seconds If successful, there will be 3 beeps and the green battery light will flash Once reset the handle will have the Easy Start feature disabled. The Quadpacer feature and Sensor pressure will be enabled.