SARA AFF R410M with T-Mobile NL (Vodafone SIM Lock? )

Hello!
I have a SODAQ SARA AFF R410M “Connected by Vodafone” and I am now in the Netherlands.
I try to use the Board with a T-Mobile NL SIM Card. The first AT command gets prompted with OK. Then the boards hangs up.
When I do the same procedure with a Vodafone SIM Card or without SIM Card, I can continue to prompt AT Commands.
Why can I not use a T-Mobile SIM? Why does the board die? Is there a SIM Lock?

Sincerly
Andreas

Hi Andreas,

Can you post the sketch you were using to test this?

We will try an replicate the issue here (using a T-Mobile NL sim).

I Programmed a PassThrough
I get

AT
OK

when I send the “AT” directly after programming. Then it stops responding at all.
I am 30 minutes from you, so I can bring the board with me and the TM NL simcard.

Sincerly,
Andreas

#if defined(ARDUINO_SODAQ_SARA)
/* SODAQ SARA */
#define DEBUG_STREAM SerialUSB
#define MODEM_STREAM Serial1


#else
#error "Please select the SODAQ SARA as your board"
#endif

unsigned long baud = 115200;

void setup() 
{
pinMode(SARA_ENABLE, OUTPUT);
pinMode(SARA_TX_ENABLE, OUTPUT);
pinMode(SARA_R4XX_TOGGLE,OUTPUT);

digitalWrite(SARA_ENABLE,HIGH);
digitalWrite(SARA_TX_ENABLE,HIGH);
digitalWrite(SARA_R4XX_TOGGLE,LOW);


  // Start communication
  DEBUG_STREAM.begin(baud);
  MODEM_STREAM.begin(baud);
  DEBUG_STREAM.write("Start");
  DEBUG_STREAM.write(SARA_ENABLE);
  DEBUG_STREAM.write(SARA_TX_ENABLE);
  DEBUG_STREAM.write(SARA_R4XX_TOGGLE);
}


// Forward every message to the other serial
void loop() 
{
  
  while (DEBUG_STREAM.available())
  {
    MODEM_STREAM.write(DEBUG_STREAM.read());
   // DEBUG_STREAM.write("Start");
   //DEBUG_STREAM.write(SARA_ENABLE);
   //DEBUG_STREAM.write(SARA_TX_ENABLE);
   //DEBUG_STREAM.write(SARA_R4XX_TOGGLE);
   // DEBUG_STREAM.write("End;");
  }

  while (MODEM_STREAM.available())
  {     
    DEBUG_STREAM.write(MODEM_STREAM.read());
  }
}

Hi, Gabriel, were you able to replicate this problem? Did you solve it? Sincerly, Andreas

Sorry for the delay, we should be able to give you a response soon.

Hi @Andreas_Runge,

What Serial Monitor/Terminal are you using?
If you use the Arduino IDE can you update to the latest version 1.8.7?

Kind regards,
Jan