Sierra EM7455 - Couldn't check if unlock required: 'SIM not inserted'

[Aleksander Morgado]

On Sun, Feb 5, 2017 at 1:45 PM, Alex Pintilie <pintiliea81 at gmail.com> wrote:
>
> I have found a not elegant but working solution for my problem on this Lenovo T460s with Sierra EM7455 :
>
> The problem: Couldn't check if unlock required: 'SIM not inserted'
>
>
> The solution: Close the lid of the laptop. It will go in standby. Open the lid. Wait for the modem to reappear.
>

Oh, could it just be that the system needs time to settle down before
the SIM is actually detected by the modem? Does a plain restart of
ModemManager (instead of closing/opening the lid) also fix the issue?

> # mmcli -L
>
> Found 1 modems:
>     /org/freedesktop/ModemManager1/Modem/1 [Sierra] MBIM [1199:9079]
>
> Notice that it's modem 1 now, not 0 !

That index change is normal; the system went into suspend mode and the
modem was re-probed from scratch when system resumed.



-- 
Aleksander
https://aleksander.es