my personal experience i updated to 9011, then wrote some scripts
#! /bin/sh
uconsole-4g-cm4 enable
sleep 15s
sudo systemctl restart ModemManager
sleep 10s
mmcli -L
and
#! /bin/sh
uconsole-4g-cm4 disable
to start and stop the 4g as needed…
used menulibre to add some menu entries to run them…
popped in a t-mobile card… and added a broadband connection auto config t-mobile… and it all worked… gnome calls… texts… i read when you update firmware you could use a bt headset… havent got that to work with gnome-phone