Otherwise we get the following exception:
Traceback (most recent call last):
File "/root/network-scan-python", line 57, in <module>
networks = modem3gpp.scan_sync()
gi.repository.GLib.Error: mm_core_error_quark: GDBus.Error:org.freedesktop.ModemManager1.Error.Core.WrongState: Cannot scan networks: not enabled yet (8)