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157

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Dear All,

I have one GSM Modem Series 900. I want to test it for sending and receiving message to mobile. I can connect with this modem, but when I put my SIM Card and I type AT command like here:

AT: Status "OK" AT+CPIN?: Status "+CPIN: PH-NET PIN" AT+CPIN="xxxx": Status "Error"

I don't know why it can't connect with the SIM Card. So do you any solution to help me on this problem?

Thanks, Sopolin

+1  A: 

HI,

Check the end of this thread: http://www.mail-archive.com/[email protected]/msg00052.html It seems that your modem is locked on a network, you´ll have to unlock it. Is it second-hand or does it come from another country?

It seems that there are a lot of answers just searching for "+CPIN: PH NET PIN"

Pablo Solera
Hi Pablo, how can I unlock GSM Modem (Wavecom). Could you guide me with AT Command?Thanks,Sopolin
Sopolin
Hi, I don´t know and for the answers I´ve been reading it does seem hard. It´s te same as unblocking a cell phone to use it with other operator, not always possible.
Pablo Solera
Hi, one more thing sir, when I don't insert SIM Card in the slot. Then I type AT command: AT+CPIN? : the message response "Error".What is this problem?
Sopolin