Hi there, @Cs601. Welcome to the Fitbit Community Forums. Thanks for trying to troubleshoot the issue with your Charge 5 before reaching out.
Please note the issue you're having comes from performing a factory reset without first unpairing your Fitbit device from your Fitbit account and phone's Bluetooth settings. With that being said, I suggest following the steps below in the order listed:
- Unpair your Charge 5 from your phone's Bluetooth and also make sure it's no longer connect to your Fitbit app.
- Force quit the Fitbit app.
- Turn off the Bluetooth.
- Shut off your phone and turn it on after 1-2 minutes.
- Turn on the Bluetooth.
- Set up your Charge 5 again.
- If there is no connection, restart your Charge 5.
If you can't get started with your Charge 5, usually a missing requirement is the cause. Carefully review the requirements provided in the help article Why can't I set up my Fitbit device?
If you continue having difficulties to update your Fitbit device, see Why can't I update my Fitbit device?
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