No modems found in list command after scan

Brian Chou brianchou1211 at gmail.com
Thu May 27 03:18:07 UTC 2021


Hi  Aleksander,

     Thanks for your reply. I will check your advice. In addition, I find
that MM only show the primary AT port of the LTE module.
Is that related to the *without-udev or without-libqmi*? I have tried to
add the other ports to MM, but MM still only show the *ttyUSB2(at)*.
mmcli --report-kernel-event="action=add,subsystem=tty,name=ttyUSB2"
mmcli --report-kernel-event="action=add,subsystem=tty,name=ttyUSB0"
mmcli --report-kernel-event="action=add,subsystem=tty,name=ttyUSB1"
mmcli --report-kernel-event="action=add,subsystem=tty,name=ttyUSB3"
mmcli --report-kernel-event="action=add,subsystem=tty,name=ttyUSB4"
mmcli --report-kernel-event="action=add,subsystem=usbmisc,name=cdc-wdm0"

Best Regards,
Brian

Aleksander Morgado <aleksander at aleksander.es> 於 2021年5月26日 週三 下午3:56寫道:

> Hey Brian
>
> >     Thanks for your explanation. I could scan the modem after put the
> udev folder to /lib folder. For now, I would meet a 3gpp network register
> issue. It seems that MM would auto-connect the available network because I
> could create the connection at my first test. After that, I always fail in
> the same test. The attachment is the log in my test, could you find
> anything wrong in the log?
> >
>
> I don't see anything in the log that would explain why you're not
> registered.
> Can you confirm the hardware setup is ok? i.e. you do have a proper
> antenna plugged in the module, right?
>
> Maybe try to run a "sudo mmcli -m0 --3gpp-scan --timeout=300" to see
> if the module reports available networks?
>
> --
> Aleksander
> https://aleksander.es
>
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