In order to disconnect properly your Filo Classic from your iPhone follow these simple steps:
In the Filo app, open the screen of the device you want to unpair and press the button in the upper right hand corner and select “Disconnect Filo”;
Open your smartphone’s settings and click Bluetooth. Select the ‘i’ to the right of the “FILO” listed under ‘My Devices’ that you are disconnecting from your phone and then select ‘Forget This Device’;
Reset your Filo by pressing its button for at least 10 seconds until you hear it ring;
Turn off the iPhone's bluetooth.