Can't turn on SIM808 module

[barneylkw]

I recently bought an Arduino UNO and a SIM808 for a project the white wire in the SIM808 is a 12V usb power supply and every time I press the button to turn it on, it just says SIM808 init error, i've also tried to connect the 5V pin from the arduino to the SIM808, and it still have the same problem
here is my code:

#include <DFRobot_sim808.h>
#include <SoftwareSerial.h>

#define MESSAGE_LENGTH 160
char message[MESSAGE_LENGTH];
int messageIndex = 0;
char MESSAGE[300];
char lat[12];
char lon[12];
char wspeed[12];

char phone[16];
char datetime[24];

#define PIN_TX 10
#define PIN_RX 11
SoftwareSerial mySerial(PIN_TX,PIN_RX);
DFRobot_SIM808 sim808(&mySerial);//Connect RX,TX,PWR,

//void sendSMS();
//void getGPS();
//void readSMS();

void setup()
{
  mySerial.begin(9600);
  Serial.begin(9600);

  //******** Initialize sim808 module *************
  while(!sim808.init())
  {
      Serial.print("Sim808 init error\r\n");
      delay(1000);
      sim808.attachGPS();
      if( sim808.attachGPS())
      Serial.println("Open the GPS power success");
      else 
      Serial.println("Open the GPS power failure");
  }
  delay(3000);

  //if( sim808.attachGPS())
  //    Serial.println("Open the GPS power success");
  //else 
  //    Serial.println("Open the GPS power failure");
      
  Serial.println("Init Success, please send SMS message to me!");
}

void loop()
{
  //*********** Detecting unread SMS ************************
   messageIndex = sim808.isSMSunread();

   //*********** At least, there is one UNREAD SMS ***********
   if (messageIndex > 0)
   { 
    // see if the arduino received a message and prints the message index
      Serial.println("(Under Loop)Received a message");
      delay(1000);
      Serial.println("Message index:");
      delay(1000);
      Serial.println(messageIndex);

      

      readSMS();
      Serial.println("in loop readsms");
      getGPS();
      sendSMS();
  
      //************* Turn off the GPS power ************
      //sim808.detachGPS();
      //Serial.println("turning off GPS power.");

      //Serial.println("Please send SMS message to me!");
   }
   //else
   //sim808.detachGPS();
   //Serial.println("turning off GPS power.");
  readSMS();
  Serial.println("outside of if");

}

void readSMS()
{
  
  sim808.readSMS(messageIndex, message, MESSAGE_LENGTH, phone, datetime);
  Serial.println("Read message");
  //Serial.println("(Under readSMS)Received a message");
  //delay(1000);
  //Serial.println("Message index:");
  //delay(1000);
  //Serial.println(messageIndex);

      
  //***********In order not to full SIM Memory, is better to delete it**********
  sim808.deleteSMS(messageIndex);
  Serial.print("From number: ");
  Serial.println(phone);  
  Serial.print("Datetime: ");
  Serial.println(datetime);        
  Serial.print("Recieved Message: ");
  Serial.println(message);
}

void getGPS()
{ 
  while(!sim808.attachGPS())
  {
    Serial.println("Open the GPS power failure");
    delay(1000);
  }
  delay(3000);

  Serial.println("Open the GPS power success");
    
  while(!sim808.getGPS())
  {
    
  }

  Serial.print(sim808.GPSdata.year);
  Serial.print("/");
  Serial.print(sim808.GPSdata.month);
  Serial.print("/");
  Serial.print(sim808.GPSdata.day);
  Serial.print(" ");
  Serial.print(sim808.GPSdata.hour);
  Serial.print(":");
  Serial.print(sim808.GPSdata.minute);
  Serial.print(":");
  Serial.print(sim808.GPSdata.second);
  Serial.print(":");
  Serial.println(sim808.GPSdata.centisecond);
  Serial.print("latitude :");
  Serial.println(sim808.GPSdata.lat);
  Serial.print("longitude :");
  Serial.println(sim808.GPSdata.lon);
  Serial.print("speed_kph :");
  Serial.println(sim808.GPSdata.speed_kph);
  Serial.print("heading :");
  Serial.println(sim808.GPSdata.heading);
  Serial.println();

  float la = sim808.GPSdata.lat;
  float lo = sim808.GPSdata.lon;
  float ws = sim808.GPSdata.speed_kph;

  dtostrf(la, 4, 6, lat); //put float value of la into char array of lat. 4 = number of digits before decimal sign. 6 = number of digits after the decimal sign.
  dtostrf(lo, 4, 6, lon); //put float value of lo into char array of lon
  dtostrf(ws, 6, 2, wspeed);  //put float value of ws into char array of wspeed

  sprintf(MESSAGE, "Latitude : %s\nLongitude : %s\nWind Speed : %s kph\nMy Module Is Working. Mewan Indula Pathirage. Try With This Link.\nhttp://www.latlong.net/Show-Latitude-Longitude.html\nhttp://maps.google.com/maps?q=%s,%s\n", lat, lon, wspeed, lat, lon);
}

void sendSMS()
{
  Serial.println("Start to send message ...");
  
  Serial.println(MESSAGE);
  Serial.println(phone);
  
  //sim808.sendSMS(phone,MESSAGE);
  sim808.sendSMS(phone, "test");
}

and a picture of my wiring