Forums - MDM9206 working only with AIRTEL SIM but not with other SIM cards?

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MDM9206 working only with AIRTEL SIM but not with other SIM cards?
yerasiprathyusha
Join Date: 3 Sep 18
Posts: 7
Posted: Fri, 2018-12-14 08:50

Hi,

 

We are using Quectel-MDM9206 BG96 module EVB.  In our application we initiate data call (qapi_DSS_Init…).

 

  1. We are able to connect consistently with Airtel (network operator in India)  - (airtel.isf)https://drive.google.com/open?id=1QP18pbAGZlhCzOBL0u1yYgVu58pnqGr6
  2. But connection with Vodafone (another operator here) is very rare (once in 10 attempts, all other times it returnsQAPI_DSS_EVT_NET_NO_NET_E). (Vodafone.isf)https://drive.google.com/open?id=1DbQonDeDup_Ur5DjzOdSalU7EjAP700f
  3. We have a team testing this application in USA (VZW) . We have a similar but different problem where post initiating the call through qapi_DSS_Start_Data_Call we never receive any information through the callback. The application waits indefinitely for connection success/failure event. (VerizonW.isf)

 

We have attached the 3 logs to this case. Please help us fix this issue

 

Thanks & regards,

Prathyusha

 

 

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gesqdn-forum
Join Date: 4 Nov 18
Posts: 184
Posted: Wed, 2020-08-19 03:48

Hi,

Please try following AT commands:

 i.      AT+CPIN?

      ii.     AT+CSQ

     iii.      AT+CREG?

     iv.      AT+CGREG?

      vi.   Take QXDM logs

v.    AT+QIACT=1 (should start data call and display already assigned IP address)

vi.   Take QXDM logs

 

CSQ needs to be more than 10 , CGREG and CREG should have 0,1 .

 

Please also try to change data call settings to default

 

thanks

 

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