modem.gprsConnect not working on Sim5300E

[antt0481]

define TINY_GSM_MODEM_SIM5300

define GSM_PIN ""

include

include

String Arsp, Grsp; //ATI, AT+CSQ, AT+CIMI

HardwareSerial gsm(1); TinyGsm modem(gsm); TinyGsmClient client(modem); PubSubClient mqtt(client);

void setup() { Serial.begin(112500); delay(500); gsm.begin(112500, SERIAL_8N1, 16, 17); delay(1000);

Serial.println("Modem: " + modem.getModemInfo()); Serial.println("SimCCID: " + modem.getSimCCID()); Serial.println("IMEI: " + modem.getIMEI()); Serial.println("IMSI: " + modem.getIMSI());

if (!modem.waitForNetwork()) { Serial.println(F("fail waitForNetwork")); //while (true) ; }

if ( GSM_PIN && modem.getSimStatus() != 3 ) { modem.simUnlock(GSM_PIN); }

while (!modem.gprsConnect("m3-world", "mms", "mms")) { Serial.println("fail gprsConnect"); delay(2000); }

gsm.println("AT+CGDCONT=?"); delay(100);

}

My result: fail gprsConnect fail gprsConnect fail gprsConnect fail gprsConnect fail gprsConnect fail gprsConnect fail gprsConnect fail gprsConnect fail gprsConnect fail gprsConnect fail gprsConnect fail gprsConnect fail gprsConnect fail gprsConnect

Working on Sim800L - 2G- but when change to Sim5300E - 3G - but fail connect. Do someone know why and how to fix?

[SRGDamia1]

Can you post the log dumping the AT commands?

#ifdef DUMP_AT_COMMANDS
  #include <StreamDebugger.h>
  StreamDebugger debugger(SerialAT, SerialMon);
  TinyGsm modem(debugger);
#else
  TinyGsm modem(SerialAT);
#endif