HC05 no connection

hello community ,

I created a new simple PRJ with HC05 (software RX/TX connection 11/10 pin)
there is no problem compile and upload to my arduino/nano-board, but I can't get connection to my App "Remote XY"!!
message window :  "Device not replay. Receive time out error "

Two days ago I tested the HC05 module with a simple sketch "on" and "off" text transfer from SPP app: "BT Simple Terminal" there wasn't a problem with same module HC05 to switch LED(13) on/off !

code generated by Editor :

/*
   -- remoteXY_HC05softSerial --
   
   This source code of graphical user interface
   has been generated automatically by RemoteXY editor.
   To compile this code using RemoteXY library 2.3.1 or later version
   download by link http://remotexy.com/en/library/
   To connect using RemoteXY mobile app by link http://remotexy.com/en/download/                   
     - for ANDROID 4.0.1 or later version;
     - for iOS 1.1.1 or later version;
   
   This source code is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.   
*/

//////////////////////////////////////////////
//        RemoteXY include library          //
//////////////////////////////////////////////

// RemoteXY select connection mode and include library
#define REMOTEXY_MODE__SOFTSERIAL
#include <SoftwareSerial.h>

#include <RemoteXY.h>

// RemoteXY connection settings
#define REMOTEXY_SERIAL_RX 11
#define REMOTEXY_SERIAL_TX 10
#define REMOTEXY_SERIAL_SPEED 9600

// RemoteXY configurate 
#pragma pack(push, 1)
uint8_t RemoteXY_CONF[] =
  { 255,1,0,0,0,17,0,6,5,0,
  2,0,36,12,22,11,2,79,78,0,
  79,70,70,0 };
 
// this structure defines all the variables of your control interface
struct {

    // input variable
  uint8_t switch_1; // =1 if switch ON and =0 if OFF

    // other variable
  uint8_t connect_flag;  // =1 if wire connected, else =0

} RemoteXY;
#pragma pack(pop)

/////////////////////////////////////////////
//           END RemoteXY include          //
/////////////////////////////////////////////

#define PIN_SWITCH_1 13

void setup()
{
  RemoteXY_Init ();
 
  pinMode (PIN_SWITCH_1, OUTPUT);
 
  // TODO you setup code
 
}

void loop()
{
  RemoteXY_Handler ();
 
  digitalWrite(PIN_SWITCH_1, (RemoteXY.switch_1==0)?LOW:HIGH);
 
  // TODO you loop code
  // use the RemoteXY structure for data transfer

}

Any help is welcome!

MaKo