Turn off the Scoreboard and turn it back again.
REPLACE THE POWER ADAPTER. It should be replaced after each inning. Each club gets 2 sets of power supply adapters.
CHECK THE BLUETOOTH MODULE. If the RED LED is not flashing, you NEED TO REPLACE IT. After replacing the Bluetooth module, YOU NEED TO PAIR IT AGAIN.
Close the app and open it again and enter the MATCH ID and connect.