BB-9E not Driving in Correct Direction
When first connecting to BB-9E, you will be entered into Aim mode. Drag to rotate the 3D model of BB-9E that you see on the app. You will then see your BB-9E rotate simultaneously. Rotate him until he faces away from you. Once he is completely facing away, stop rotating the on-screen BB-9E and tap the Drive icon. When you move the joystick, BB-9E should drive in the direction you want him to go.
If ever you need to aim him again, just tap the Aim icon and repeat the above.