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I recently purchased a Huawei E220 modem, which was branded by PhoneCompanyA, and I wish to use it on PhoneCompanyB's network using a SIM card from PhoneCompanyB. PhoneCompanyB's 3G network uses the 850MHz and 2100MHz bands, both of which this modem supports.

However when I try to use the modem, it will not connect to the network. When I try to do it manually with AT+COPS=1,2,53000 I get CME Error 30: No network service which is odd because when I put the SIM card in my cell phone I get plenty of service.

Is there any way I can get this modem to work with this SIM card?

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    Has the the modem been 'rooted' or 'upgraded' with a custom firmware? Just because it's got a name on the box doesn't mean it's in the state at which it was manufactured!
    – Dave
    Commented Feb 21, 2014 at 13:02
  • I've upgraded the firmware to the latest available: 11.313.02.00.01 and still have the same problem.
    – DanielGibbs
    Commented Feb 22, 2014 at 1:22

1 Answer 1

Reset to default
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From what I understand, your command tries to connect specifically to a network with ID 53000. Instead, try the following:

at+cops=0

According to various docs, this will allow the device to automatically select an appropriate network.

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  • I've tried that. After performing this command, it connects to PhoneCompanyA's network, despite having PhoneCompanyB's SIM card. The network ID of PhoneCompnyB is 53000, hence why I used that value.
    – DanielGibbs
    Commented Feb 21, 2014 at 23:42
  • If it successfully connects to a network, it's allowed to use it. I don't see how that could be wrong. If you want further help, please name the two network operators in your question, thanks.
    – Daniel B
    Commented Feb 22, 2014 at 12:55
  • Yes, it connects to the network that I don't want to use: Vodafone New Zealand. I would like to use the Telecom New Zealand network.
    – DanielGibbs
    Commented Feb 22, 2014 at 20:20
  • According to this list, Telecom NZ has three different network codes. You might want to verify the correct SIM card is inserted.
    – Daniel B
    Commented Feb 22, 2014 at 22:09
  • Yep, I've tried all three of them, and neither of them work. The SIM card is definitely a Telecom NZ SIM card and works fine in my mobile phone.
    – DanielGibbs
    Commented Feb 23, 2014 at 5:42

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