A. 1. Ensure Bluetooth is enabled: Go to Settings > Bluetooth and make sure it is turned on. 2. Restart Bluetooth: Turn Bluetooth off and then back on to refresh the connection. 3. Forget and reconnect: Go to Settings > Bluetooth, find the LEGO device, tap on it, and select 'Forget'. Then, reconnect the device.

B. 4. Check for interference: Ensure there are no other devices causing interference with the Bluetooth connection.