Anybody help please.
I have 3G module, MC8705 and pcb to connect with PC and SIM card.
I need to access data network using these but looks like can not access in unknown reasons.
The SIM card works well because data network accessible with 3G normal phone.
However, when I use SIM card with 3G module, can’t access data network.
It is Optus SIM card and that’s all I changed APN for the normal phone.
What I did for 3G module data network is :
- AT+CGDCONT=1,“IP”,“APN name same as normal phone”
- AT+CGDCONT=2,“IP”,“APN name same as normal phone”
- AT!RESET to reset
The problem is :
response : +COPS: 0
response: +CREG: 0,2
I also can’t set value to +COPS and +CREG
Current Time: 33511 Temperature: 23
Bootup Time: 24052 Mode: ONLINE
System mode: GSM PS state: Not attached
WCDMA band: IMT2000 GSM band: GSM900
WCDMA channel: 10700 GSM channel: 1
GMM (PS) state:DEREGISTERED NO SERVICE
MM (CS) state: IDLE NO SERVICE
Serving Cell: 0 (Unknown )
RX level (dBm):0.0
GPRS State: GPRS IDLE
looks like can’t access data network.
Here is Korea and the SIM was roaming from Austrailia.
So what else I should do or 3G module has some problem?