Bluetooth connection not available.

I want to connect my smartphone with Bluetooth. But I can’t connect.
My goal is to look at the text messages on the LCD on my smartphone.
The coding below is self make. Please help me with coding.

#include <LiquidCrystal.h>

#include <SoftwareSerial.h>

//

LiquidCrystal lcd(7,6,5,4,3,2);

SoftwareSerial hc06(11,10); // 11—블루투스TX // 10—블루투스RX

//

int smokeA0=A0;

int redLed=13,greenLed=12,buzzer=8;

//

int sensorThres=300;

//

void setup(){

pinMode(redLed,OUTPUT); pinMode(greenLed,OUTPUT);

lcd.begin(16,2);

Serial.begin(9600);

hc06.begin(9600);

}

//

void loop(){

if(hc06.available()){

Serial.write(hc06.read());

}

if(Serial.available()){

hc06.write(Serial.read());

}

//

int analogSensor=analogRead(smokeA0);

Serial.print("Pin A0: "); Serial.println(analogSensor);

lcd.setCursor(0,0); lcd.print("smoke Level: "); lcd.print(analogSensor-50);

if(analogSensor-50>sensorThres){

digitalWrite(redLed,HIGH); digitalWrite(12,LOW);

lcd.setCursor(0,1); lcd.print(“Alert…!!!”);

tone(buzzer,1000,200);

}

else{

digitalWrite(redLed,LOW); digitalWrite(12,HIGH);

lcd.setCursor(0,1); lcd.print("…Normal…");

noTone(buzzer);

}

delay(500);

lcd.clear();

}

Have you paired the bluetooth to your phone?

Have you successfully used a bluetooth serial terminal app on your phone to communicate with the Arduino via the bluetooth?