Why Won't My Fitbit Sync Anymore?
Troubleshooting Steps Bluetooth and Turn Bluetooth off and Back On. Turn Your Phone or Tablet off and Back On. Uninstall and Reinstall the Fitbit App. If Your...
Why is my Fitbit not syncing with my fitness app?
Launch the MyFitnessPal app, then in the Menu (or "More" page), tap Apps, and disconnect from Fitbit there. Then log out or force quit the app. Please make sure you know your username and password before doing so. ... Finally, log back into the MyFitnessPal app, go back to Steps, and reassign Fitbit as your step source.
Why has my Fitbit app stopped working?
You may need to force quit the Fitbit app. From your mobile device, head to Settings>Apps>See all apps>Fitbit>Force Stop. Try turning Bluetooth off and on again. From your mobile device, head to Settings>Bluetooth, then turn the Bluetooth toggle off then on.