In some cases, you might need to unpair your toothbrush from the App.
Disconnect your toothbrush
1) Tap the toothbrush icon on the top of the main screen
2) Select “Forget my toothbrush” at the bottom of the screen.
3) Confirm that you want to forget the toothbrush pressing "Forget".
Once your toothbrush has been forgotten, you can pair it with another device.