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I've recently bought a IOT-GA6 gsm module . I want to use it to send an mms but doesn't work. The SMS and call work. When I execute the void function (mms) the monitor shows the error message +CME EYROR:58. Does anybody know what this means and how to solve it? enter image description here

this is my code

include SoftwareSerial.h
include SD.h

define  CS    4

SoftwareSerial A6Module(2, 3);

File dataFile;

int i;

unsigned char data=0;

void setup()
{
  pinMode(PWR,OUTPUT);
  pinMode(CS,OUTPUT);

  A6Module.begin(115200);
  Serial.begin(115200);

  digitalWrite(PWR,LOW);
  delay(10);

  digitalWrite(PWR,HIGH);
  delay(10);

  if (!SD.begin(CS)) Serial.println("initialization failed!");
  else Serial.println("initialization done.");  
}

void loop()
{
  if(Serial.available())
  {
    while(Serial.available())
    {
      data=Serial.read();
      Serial.write(data);
      Serial.println("\n");
    }
    //data=0;
  }

  if(Serial.available())
  {
    data=Serial.read();
  }  

  if(data=='1')
  {
    A6Module.println("AT+CGMI\r"); //Manufacturer identification
  }

  if(data=='2')
  {
    A6Module.println("AT+CGMM\r"); //Model identification
  }

  if(data=='3')
  {
    A6Module.println("AT+CGMR\r"); //Software version
  }

  if(data=='4')
  {
    A6Module.println("AT+CGSN\r"); //IMEI number
  }

  if(data=='5')
  {
    A6Module.println("ATD+21369682909;\r"); //Calling
  }

  if(data=='6')
  {
    A6Module.println("ATH\r"); //Hang Up
  }

  if(data=='7')
  {
    A6Module.println("AT+CMGF=1");
    delay(2000);
    A6Module.print("AT+CMGS=\"+213696829093");
    A6Module.print(char(34));  // "
    A6Module.print(char(13));  // CR
    A6Module.print('\r');  // hex equivalent of newline
    delay(2000);
    A6Module.print("A6 test message");
    delay(500);
    A6Module.println (char(26));  //ctrl_z
  }

  if(data=='8')
  {
    A6Module.println("AT+CMGR=1\r"); //Read message
  }

  if(data=='9')
  {
   A6Module.println("AT+CMGD=1,0\r"); //Delete message
  }  

  if(data=='s') sendMMS();
  data=0;
}

void sendMMS()
{
  A6Module.print("AT+CMMSINIT");
  delay(100);

  if(A6Module.available())
  {
    while(A6Module.available()) Serial.write(A6Module.read());
  }
  A6Module.print("AT+CMMSCURL=\"http://mms.itelcel.com/servlets/mms\"");
  delay(100);

  if(A6Module.available())
  {
    while(A6Module.available()) Serial.write(A6Module.read());
  }
  A6Module.print("AT+CMMSCID=1\r");
  delay(100);

  if(A6Module.available())
  {
    while(A6Module.available()) Serial.write(A6Module.read());
  }
  A6Module.print("AT+CMMSPROTO=\"148.233.151.240\",8080");
  delay(100);

  if(A6Module.available())
  {
    while(A6Module.available()) Serial.write(A6Module.read());
  }
  A6Module.print("AT+CMMSSENDCFG=6,3,0,0,2,4\r");
  delay(100);

  if(A6Module.available())
  {
    while(A6Module.available()) Serial.write(A6Module.read());
  }
  A6Module.print("AT+SAPBR=3,1,\"CONTYPE\",\"MMS\"\r");
  delay(100);

  if(A6Module.available())
  {
    while(A6Module.available()) Serial.write(A6Module.read());
  }
  A6Module.print("AT+SAPBR=3,1,\"APN\",\"mms.itelcel.com\"");
  delay(100);

  if(A6Module.available())
  {
    while(A6Module.available()) Serial.write(A6Module.read());
  }
  A6Module.print("AT+SAPBR=1,1");
  delay(4000);
  if(A6Module.available())

  {
    while(A6Module.available()) Serial.write(A6Module.read());
  }
  A6Module.print("AT+SAPBR=2,1");
  delay(4000);

  if(A6Module.available())
  {
    while(A6Module.available()) Serial.write(A6Module.read());
  }
  A6Module.print("AT+CMMSEDIT=1");
  delay(100);

  if(A6Module.available())
  {
    while(A6Module.available()) Serial.write(A6Module.read());
  }
  A6Module.print("AT+CMMSDOWN=\"PIC\",19293,2000000,\"test.jpg\"\r");
  delay(1000);

  if(A6Module.available())
  {
    while(A6Module.available()) Serial.write(A6Module.read());
  }

  dataFile=SD.open("test.jpg");
  i=0;
  if(dataFile)
  {
    while(dataFile.available())
    {
      data=dataFile.read();
      if(data<0x10) Serial.print("0");
      Serial.print(data,HEX);
      i++;
      if((i%40)==0) Serial.println();
      A6Module.write(data);
    }
    dataFile.close();
  }  
  else
  {
    Serial.println("error opening test.jpg");
  }

  delay(1000);
  A6Module.print("AT+CMMSRECP=\"+213696829093");
  delay(100);

  if(A6Module.available())
  {
    while(A6Module.available()) Serial.write(A6Module.read());
  }
  A6Module.print("AT+CMMSVIEW\r");
  delay(2000);

  if(A6Module.available())
  {
    while(A6Module.available()) Serial.write(A6Module.read());
  }
  A6Module.print("AT+CMMSSEND\r");
  delay(2000);

  if(A6Module.available())
  {
    while(A6Module.available()) Serial.write(A6Module.read());
  }
  A6Module.print("AT+CMMSEDIT=0\r");
  delay(2000);

  if(A6Module.available())
  {
    while(A6Module.available()) Serial.write(A6Module.read());
  }
  A6Module.print("AT+CMMSTERM\r");
  delay(2000);

  if(A6Module.available())
  {
    while(A6Module.available()) Serial.write(A6Module.read());
  }
}
  • 2
    which line causes the error? ... use print statements to debug the program flow – jsotola May 31 '18 at 16:20
  • all commands beginning as 'AT+CMMS' to A6 receives +cme error 58 I dont' know why! – b chabb Jan 10 at 15:55

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