I have an evaluation kit for the Q2686 modules. I’m experiencing difficulties in network registration, to be able to send and receive sms messages. Now I’ve tried with two Q2686 modules and two SIM cards, where the other SIM card is from my own mobile. I’m just starting out with the hyperterminal, entering AT commands to the module. I enter my pin code, the signal strength is fine, but when entering at+cind? it responses f.ex. with +CIND: 4,3,0,0,0,0,0 meaning, among other things, that the signal strength is ok but the module is not registered to the network. By entering at+creg=1 it results in +CREG: 2 meaning no registration.
Does anyone recoqnize the problem and/or if it is related to the evaluation kit or not?
I’m at the same time working with the M1306B Fasttrack modules, and they are working fine.
Following is an example of the at-command/response sequence i use:
at OK at+cfun=1 OK at+cpin=2014 OK at+cpin? +CPIN: READY at+cind? +CIND: 4,3,0,0,0,0,0 OK at+csq +CSQ: 23,0 OK at+creg=1 OK +CREG: 2