Hi Aleksander.

We have a Sierra-MC8080, and about a month and half-back, everything was
working perfectly, when I followed the steps ::




*#############################################################sudo
add-apt-repository -y ppa:aleksander-m/modemmanager-trustysudo apt-get
updatesudo apt-get install -y modemmanager*



*#############################################################*Now,

a)
qmi-proxy gets killed after some time (after reboot, and if started
manually).

b)
Some operations work, while some don't.

*#############################################################*
*mmcli -L*

Found 1 modems:
    /org/freedesktop/ModemManager1/Modem/0 [Sierra Wireless, Incorporated]
MC8090

*mmcli -m 0 -e*
successfully enabled the modem

*mmcli -m 0 --set-allowed-modes='2G'*
error: couldn't set current modes:
'GDBus.Error:org.freedesktop.ModemManager1.Error.Core.Unsupported: Setting
allowed modes not supported'

*mmcli -m 0 -r*
error: couldn't reset the modem:
'GDBus.Error:org.freedesktop.ModemManager1.Error.Core.Unsupported: Cannot
reset the modem: operation not supported'
*#############################################################*



Following are the package-versions :

*#############################################################*
*dpkg -l | grep -i Modem*
ii  libmm-glib0:i386
1.5.992-3+trusty                                    i386         D-Bus
service for managing modems - shared libraries

ii  modemmanager
1.5.992-3+trusty                                    i386         D-Bus
service for managing modems

*dpkg -l | grep -i qmi*
libqmi-glib0:i386
1.4.0-1                                             i386         Support
library to use the Qualcomm MSM Interface (QMI) protocol

libqmi-glib5:i386
1.14.2-2+trusty                                     i386         Support
library to use the Qualcomm MSM Interface (QMI) protocol

libqmi-proxy
1.14.2-2+trusty                                     i386         Proxy to
communicate with QMI port




*#############################################################*
Please let me know in case anything else is required.

I will be grateful if some pointers are given on an urgent basis.
Based on our previous testing, we have committed the dates to the customer
for bulk-delivery, and now we are in a big fix :(


Thanks and Regards,
Ajay
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