Please help me to find network

i have problem with at+creg at+creg=0,2
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More about please find network
  1. Is that SIM300D module?
    Try using AT+CNMI=0,1,0 to switch off CBM messages.
    You can check, if module is registered wit the following command:

    +CREG: 0,1

    If you want to set URC to automatically sends you a message on registration change, use AT+CREG=1

    after this, you will be automatically notified when the module registeres
    +CREG: 1,1

    and when it deregisteres
    +CREG: 1,0

    Now you see, that the first parameter is 1. This was set by command AT+CREG=1.

    I hope that helps.
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