11-30-2016 13:43
11-30-2016 13:43
12-01-2016 03:50
12-01-2016 03:50
Hello @NunoCosta, welcome to the Fitbit Community, it's nice to see new faces around!
In the Bluetooth settings of your phone, are you able to see the "Surge" as a paired device? If so, please tap on it and select Forget this Device, then turn off your phone.
After that, please restart your Surge:
Turn your phone back on, reset the Bluetooth on it by turning it off, wait 10 seconds and turn it back on, then try to set up your Surge. If the tracker is still unable to connect with the app, my best recommendation would be contacting our Support Team. Let them know about the steps you've performed so far, I'm sure they will be more than happy to assist you get back on track.
Give it a try and keep me posted if you need anything else!