Make sure the 2.54mm jumper is installed prior to applying power to the board.
Make sure that your battery has been through a complete charging cycle.
Upon power up the Motor-Hat will advertise for 30 seconds inadvertent of pushing the pairing button. You can avoid opening the Top Cover assembly by simply toggling the power switch on/off and the Motor-Hat will show up again in your browser for pairing.
Now Let's Command the Motors with the Joystick
Connect one or both motors as depicted in the Illustration.
Pressing any one of the joystick arrows will command the motors clock-wise/counter-clockwise respectively.
Access the Joystick Console first using your Chrome Browser:
