Situation: We have received many reports that Inspire 2 Bluetooth is not pairing, or it doesn’t sync with Fitbit app because the Bluetooth doesn’t work.
Resolution 1: Restart your mobile device and then please restart your Bluetooth. You can do this by turning off the Bluetooth for at least 10-20 seconds and then turn it on again. After that, please restart your Fitbit device following the instructions here.
Resolution 2: Go to Settings on your inspire 2 band and then clear user data.
Resolution 3: Clear the fitbit apps cache or re-install fitbit.
Resolution 4; You need to squeeze the Inspire 2 with the charging adapter in order to ensure constant contact.
Resolution 5: The issue is resolved when I disconnected the device from the app on my phone.