Dear Sam Thanks for writing us here and sorry for any inconvenience caused. We are recommended to do below troubleshooting steps one by one and share results with write an email to "cx@my-fobo.com" : 1. Logout and uninstall App from your Smartphone, 2. Reinstall FOBO Bike2 App from App Store / Play Store , 3. Login with same email as before which you have registered and installed sensors 3. Accept and allow all App permissions , specially turn on Bluetooth and location service for FOBO Bike 2 App . 4. You will have your Bike’s profiles and sensors in your account . Please let us know how it goes and if you have any issue arise, you may revert to us for further assistance with write an email to "cx@my-fobo.com", Best Regards Amir Bayati FOBO Support Team