SIM300S modem meet problem when register with SIMCARDS

[moyoumin]

Currently, our SIM300S modem come with problem when register SIMCARDS. This issue is like follow:

SIMCARD works with mobile phones and Siemens GSM Modems. It has problem working with SIM300S modules. When we first put the SIMCARD to the Modem with works for the first time, from then onwards it doesn’t work. Again we remove the SIMCARD and put it back it will work once and again stops working. The same modem works with the same service providers other SIMCARDS. Some SIMCARDS the modem doesn’t work. Those problem SIMCARDS works on mobile phones and Siemens modems.

Anyone have suggustion about that?

 

[sabeti_1990]

hi it may the module cann't work with your operator

check the wavecom module

 

[moyoumin]

Hi, sabeti. Thanks. I think it's SIMCOM ADI wireless solution problem. Lots of SIMCOM modules have problem in carping at SIMCARDS. It can't be fix. Only sulottion is to change SIMCARDS or module.