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You didn't mention trying a restart of the fitbit by:
If you did try it note that it doesn't always work and it's recommended to try it at least 3 times.
Best AnswerBy any chance have you installed the FitBit app onto any other mobile device?
If you have, try turning the Bluetooth off on any other device you have the app installed on and try to sync again.
I use my tablet to view my results that I sync to my phone. If I forget to turn Bluetooth off on my tablet my phone absolutely will not sync until Bluetooth is turned off.
Your tracker does not need to be listed in your mobile devices Bluetooth settings for it to sync and interfere with syncing on other devices.
Best Answer