Bluetooth the dongle is required.
o (Windows only) The wireless sync dongle is plugged into a USB port on the
computer. If your device didn't come with a dongle and you can't use a phone or
tablet instead, contact Customer Support.
o If the dongle is plugged in, your computer is able to recognize it. To check, on
your computer find and click the icon with a Fitbit logo. It is located near the date
and time. If you see "USB Dongle Disconnected," try a different USB port.
Troubleshooting
If you're still unable to set up, try the troubleshooting steps below for your device or computer.
Phone or tablet
1. Turn off Bluetooth on your phone; wait 10 seconds, and then turn it back on.
2. Try setting up your device again.
3. Turn your Fitbit device off and back on using the instructions in How do I restart
my Fitbit device?
4. Try setting up your device again.
5. If you can't set up after a restart, reboot your phone or tablet (turn it off and then
back on).
6. Try setting up your device again.
7. If you can't set up after the reboot, remove all other Fitbit devices from your
account and from the list of connected Bluetooth devices on your phone or tablet.
8. Try setting up your device again.
9. If you can't set up after removing all other Fitbit devices, try uninstalling and
reinstalling the Fitbit app.
10. If you still can't set up, please contact Customer Support so we can investigate.
Windows 10 Computers
1. Turn your Fitbit device off and back on using the instructions in How do I restart
my Fitbit device?
2. Try setting up your device again.