Troubleshooting I cannot calibrate my Philips Sonicare electric toothbrush. If your Philips Sonicare app does not successfully calibrate your toothbrush, we are here to help. Discover how you can easily mend it yourself. Try this Place your toothbrush on flat surface in an upright position and then tap calibrate in the app. For additional help, you can access customer support online or through the app Support.