If your Bluetooth is on and you still cannot connect to your helmet, try the following steps:

1. Restart your smartphone and helmet: Turn off your smartphone and helmet, then turn them back on. This can help reset the Bluetooth connection.

2. Forget the helmet on your smartphone: Go to your smartphone's Bluetooth settings, find the helmet device, and select "Forget this device." Then try to reconnect the helmet to your smartphone.

3. Update the Livall App: Make sure you have the latest version of the Livall App installed on your smartphone. You can check for updates in the App Store or Google Play Store.

4. Reset the helmet: Press and hold the power button on the helmet for 10 seconds until the LED light flashes rapidly. This will reset the helmet's Bluetooth connection.

5. Contact customer support: If none of the above steps work, please contact Livall customer support for further assistance. Our team will be happy to help you troubleshoot the issue and find a solution.

We hope these steps help you connect your Android smartphone to your Livall helmet. If you have any further questions or concerns, please do not hesitate to reach out to us. We are committed to providing excellent customer support and ensuring that you have the best experience with our products.