How to connect SIM7020G to the network?

[jeetS]

Hi there,

I have SIM7020G COM.X NB-IOT module and I am trying to connect it with network.

I am using 12V 3A SMPS and DC-DC step down converter (3A max) to drive SIM7020G module. Also, I am using airtel sim card.

AT

OK
AT+CPIN?

+CPIN: READY

OK
AT+CSTT="airtelgprs.com,"",""

ERROR
AT+CSTT="airtelgprs.com","",""

OK
AT+
+CGREG: 0▒▒CI
+CGREG: 2

+CGREG: 0
AT+CIICR

ERROR
AT+CGREG=?

+CGREG: (0-2)

OK
AT+CSQ

+CSQ: 99,99

OK

+CGREG: 2

This is what I am getting in response and I tried to change sim card.

Thank you so much in advance

[ameero95]

@jeets said in How to connect SIM7020G to the network?:

airtel sim card

does your sim card provider's network provider/s support NB-IoT? Because the SIM7020G only supports NB-IoT.

[HappyUser]

You may also try to remove the simlock of your card.

[felmue]

Hello @HappyUser

as far as I understand below AT command and response from the log means that the SIM card is unlocked, no?

AT+CPIN?
+CPIN: READY
OK

Thanks
Felix

[HappyUser]

@felmue Indeed, According to the manual Ready means MT is not pending for any password.
Regards
Jitse

[HappyUser]

@jeets +CSQ: 99,99 tells me that you don't have a signal.

[silentrain23]

@HappyUser

I am struggling trying to make a M5CORE2 working with a COMX.NB.IOT module.
I am gettingAT+CSQ 99,99
AT+COPS 0
AT+CREG 0,2
Do you think I am communicating in the correct way with the module?
Any Idea on how to connect to the network?

[felmue]

Hello @silentrain23

I think you probably just need to wait a bit longer for it to register.

From the AT Command document (link here) the 2 in the AT+CREG 0,2 response means: Not registered, but MT is currently searching a new operator to register to

Thanks
Felix