Comment 52 for bug 456612

Revision history for this message
Hardik Dalwadi (hardik-dalwadi) wrote : Re: network manager does not connect through CDMA 3G after upgrade

@ Animesh, @ Devil,

If you are on Karmic, Please check this LP #461096 for more details. I think it's problem with ModemManager.

@ Devil,

Here is the line which causing the issue.

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Jan 1 07:41:04 devil NetworkManager: <WARN> stage1_prepare_done(): CDMA modem connection failed: No service
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If you are In Lucid Lynx Beta 1, You will get the same problem while connecting Huawei EC1260 with Reliance NetConnect Broadband+ service. ModemManager checks for SID / Class / Band. If it will not get those value it will give "No Service" error, as given above. In 0.3 ModemManager allows SID=0 in some cases. But, below code is putting SID=9999, because of No Band / Class by provider. Please comment below code in mm-generic-cdma.c, rebuild the package, Now RelianceNetConnect Broadband+ service will work Huawei EC 1260 Modem, it's also true for other modems, but not tested, still investigating the issue, but this hacks works for me.

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/* Return 'no service' if none of the elements of the +CSS response
         * indicate that the modem has service. Note that this allows SID 0
         * when at least one of the other elements indicates service.
         * Normally we'd treat SID 0 as 'no service' but some modems
         * (Sierra 5725) sometimes return SID 0 even when registered.
         */
        //if (sid == 0 && !class_ok && !band_ok)
        // sid = 99999;
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