android.app.ServiceConnectionLeaked: Activity ...MainActivity has leaked ServiceConnection ...MainActivity$1@e794142 that was originally bound here

You need to add this in your code.

@Override
protected void onDestroy() {
    super.onDestroy();
    unbindService(m_serviceConnection);
    Toast.makeText(MainActivity.this, "Service Un-Binded", Toast.LENGTH_LONG).show();
};