ModemManager fails to utilize Modem, when it is not ready yet

Aleksander Morgado aleksandermj at
Wed Apr 12 09:54:01 UTC 2023

On Tue, Apr 11, 2023 at 11:34 AM Christian Schneider
<cschneider at> wrote:
> Ok, I see. Having a workaround in ModemManager would be great.
> I will also try to contact the supplier/manufacturer to see, if this can
> be changed.
> What would be the proper reponse in such a case?
> CME ERROR: 14 SIM busy?

That could be a good compromise I guess; or even a generic ERROR would
have been better than lying.


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