QMI protocol error (14): 'CallFailed''

[Giacinto Cifelli]

Hi Federico,

On Fri, Feb 26, 2021 at 4:52 PM Federico Murciano
<Federico.Murciano at dai-labor.de> wrote:
>
> Hello everyone,
>
>
> since a while I have been experimenting this problem when I try to connect my modem to the APN. It was working for a long time till a upgraded the firmware and after that it always appear so I cant use ModemManager to connect the modem. I just tried upgrading to ModemManager1.16 but it seems to be the same (Also upgraded qmi and mbim to the last stable releases in https://www.freedesktop.org/software)<https://www.freedesktop.org/software>?
>
>
> Could someone give me a hint? Thanks. The error is the following:
>
>
> sudo mmcli -m 0 --simple-connect="apn=internet.telekom"
>
> error: couldn't connect the modem: 'GDBus.Error:org.freedesktop.libqmi.Error.Protocol.CallFailed: QMI protocol error (14): 'CallFailed''
>

what is your modem and can you give the "lsusb -t" result for your device?

Regards,
Giacinto