Android Bluetooth joystick

The X and Y values on the tablet screen don't display the position of the joystick

Can you move the joystick ??
Are the data now displayed on the tablet screen ??

The screen shown on the second screenshot at https://play.google.com/store/apps/details?id=org.projectproto.btjoystick&feature=search_result#?t=W251bGwsMSwxLDEsIm9yZy5wcm9qZWN0cHJvdG8uYnRqb3lzdGljayJd doesn't show up. How can I fix this?

The menu is displayed when pressing the hardware menu button at the bottom of your tablet
Can you access it ??

You need to enter this menu to establish a Bluetooth communication

Please let me have more detailed information

I will post a new version including a "reset configuration" option
The initial configuration should work right out of the box with the above Arduino sketch