05-19-2016 18:34
05-19-2016 18:34
05-20-2016 05:28
05-20-2016 05:28
Welcome to the Fitbit Forums @byflutter2000! Have you tried these syncing troubleshoots. Make sure that there isn't another bluetooth device that may be creating interference during the process. Setting up your tracker as a new device as per @AlejandraFitbit's instructions may also help you to bring it back to sync as usual. Also, make sure that your tracker is running the latest software version and your mobile device the latest version of the Fitbit app for Android.
Let me know how it goes.