ModemManager Debugging

[Guilherme Claudino e Silva]

My name is Guilherme Claudino e Silva and I'm a Jr. Field Application Engineer at Toradex. I work mainly supporting our customers to develop their Linux Applications using our modules. I contact you because one of our customers is facing an error trying to use mmcli on our products and I couldn't find much information about this error on the internet.

I've been told to ask this question on the modem manager mailing list. Is there a way to debug the following error? I tried even to enable more logging with mmcli -G DEBUG but without much success.

$ mmcli -m 0 --simple-connect="apn=live.vodafone.com,pin=0000"
error: couldn't connect the modem: 'GDBus.Error:org.freedesktop.ModemManager1.Error.MobileEquipment.Unknown: "SM deactivation", 0, "No cause information available"'

The modem seems available and enabled (mmcli -m 0 -e), the SIM Card unlocked and we even tested multiple APN's. The modem also seems to work well on other computers. It's a Huawei MU736. Here is the thread in case you want to see a bit more of what has been tested: https://community.toradex.com/t/modemmanager-on-torizon/17166/10


Thanks a lot for your attention and time.

Best regards,
Guilherme


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