ESP32+iPhone can't read Datastream's GPS(latitude, longitude) and print serial monitor

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I tired these methods but they didn’t work.
I can’t find the widget that uses the mobile sensor in the Blynk App’s widget box.
Or all that said is not available ?
Map in web dashboard is for track gps with timestamp that’s not my intention.



On-OFF V3 only print V3’s values

/* Comment this out to disable prints and save space */

#define BLYNK_PRINT Serial

/* Fill in information from Blynk Device Info here */

#define BLYNK_TEMPLATE_ID "*****"

#define BLYNK_TEMPLATE_NAME "*****"

#define BLYNK_DEVICE_NAME "*******"

#define BLYNK_AUTH_TOKEN "*************"

#include <BlynkSimpleEsp32.h>

#include <WiFi.h>

#include <WiFiClient.h>

char auth[] = BLYNK_AUTH_TOKEN;

char ssid[] = "CLASS@BURIRAM";

char pass[] = "044163910";

int LED_test = 2 ;

BlynkTimer timer;

void setup()

{

  Serial.begin(115200);

  Blynk.begin(auth, ssid, pass);

  //timer.setInterval(1000L, getGpsLocation); // call getGpsLocation every 1 second

  pinMode(LED_test, OUTPUT);

}

void loop()

{

  Blynk.run();

  timer.run();

}
//-------V3 is button
//-------V6 is location
BLYNK_WRITE(V3) {

  //double lat ;

  //double lon ;

    WidgetMap myMap(V6);{

    int index = 1;

    double lat = param[0].asDouble();

    double lon = param[1].asDouble();

    float alt = param[2].asFloat();

    float speed = param[3].asFloat();    

    myMap.location(index, lat, lon, "value");

    Serial.println(lat, 7);

    Serial.println(lon, 7);

    }

}

BLYNK_WRITE(2) { //turn light

  digitalWrite(LED_test, param.asInt());

}

BLYNK_WRITE(V6) {

  float latitude = param[0].asFloat();

  float longitude = param[1].asFloat();

  float altitude = param[2].asFloat();

  float speed = param[3].asFloat();

  Serial.println(latitude, 7);

  Serial.println(longitude, 7);

  Serial.println(altitude, 7);

  Serial.println(speed, 7);

}