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How to repair a Braun Oral-B Wireless SmartGuide

Some of the more “luxury” models of electric toothbrush made by Braun/Oral-B come with a small wireless display called a SmartGuide. The SmartGuide displays your progress as you brush, showing how long you’ve been brushing, which quadrant of your mouth you should be on, flashing up a warning if you press too hard and rewarding […]