MM cannot open MBIM port; Character set conversion error

Aleksander Morgado aleksander at
Wed Sep 6 07:46:17 UTC 2017


> I am using MM version 1.6.8 on Yocto (Linux version 4.4.8) to communicate
> with Telit LE910 NA V2 modem.
> The modem is configured to support MBIM and cdc_mbim gets loaded on Yocto
> when the modem is connected. However MM is unable to open MBIM port and I
> see a  character set conversion error when I query-device-caps using
> mbimcli.
> I have have looked at a similar issue in
> but this thread does not have the resolution.
> mbim-proxy seems to be running in my case. I have pasted MM debug logs below
> along with mmcli output.
> Please let me know if this issues sounds familiar and if you have any
> suggestions on how to address it.

Does your system include any iconv support? libmbim needs
UTF-8<->UTF-16 conversions.


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