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Hey @Michele4
Head over here and follow Derricks fix:
https://community.fitbit.com/t5/iOS-App/Charger-HR-iPhone-6-error-400/m-p/944571#M23943
ALAN | VAN,B.C. Canada Community Council Member
Versa, Charge, Charge HR, Ionic, Ace, Aria 2 scale, Flyer headphones - iOS
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