HL 76XX series Initial Setup

IoT Modules Legacy HL Series
1

Hi,

I would like to connect HL (7618) module to the internet through LTE connection. I am using a serial interface (UART) for all AT commands. (I am not running any USB connection or Linux.)

Could any one of you please tell me the initial setup commands to get some response from internet?

Below are the observations from my current testing, I hope this will help you to give me some specific answer.

AT+KBND?
+KBND:0010000 // LTE band 13 Verizon

AT+CREG?
+CREG: 0,0 // not registered.

AT+CEREG?
+CEREG: 0,1 // registered

AT+CGREG?
+CGREG: 2,1 // registered

Thanks
AJ

2

Hello,

To get response from the internet there are following steps.

  1. register on network:- check at+cgreg
  2. define PDP :- check at+cgdcont
  3. activate PDP:- check at+cgact
  4. check IP address:- check at+cgpaddr
  5. check browsing connection

Note :- please also check the signal strength of the network by checking command at+csq

Thanks & Regards,
Rex

3

Hello Rex,

Thanks for your reply.

The HL7618 supports only LTE network.
It doesn’t support any GPRS connection. But, my module was registered in GPRS mode and I was unable to get the IP address.

Do you know, Is there any specific configuration for LTE connectivity?

Thanks
AJ

4

Problem solved. It was fixed by manual registration.

Thanks
AJ