:~# mmcli -m 0 --command=AT+GMM
error: command failed: 'GDBus.Error:org.freedesktop.ModemManager1.Error.Core.WrongState: modem in failed state'
:~# mmcli -m 0 --command=ATMI
error: command failed: 'GDBus.Error:org.freedesktop.ModemManager1.Error.Core.WrongState: modem in failed state'
:~# mmcli -m 0 --command=AT
error: command failed: 'GDBus.Error:org.freedesktop.ModemManager1.Error.Core.WrongState: modem in failed state'
:~# mmcli -m 0
  -----------------------------
  General  |         dbus path: /org/freedesktop/ModemManager1/Modem/0
           |         device id: 58adf37d1038c7844a5831a0217174771554a027
  -----------------------------
  Hardware |      manufacturer: Sierra Wireless, Incorporated
           |             model: EM7455
           | firmware revision: SWI9X30C_02.24.05.06 r7040 CARMD-EV-FRMWR2 2017/05/19 06:23:09
           |    carrier config: default
           |      h/w revision: 1.0
           |         supported: gsm-umts, lte
           |           current: gsm-umts, lte
           |      equipment id: 359073063521797
  -----------------------------
  System   |            device: /sys/devices/pci0000:00/0000:00:15.0/usb1/1-4/1-4.1
           |           drivers: qcserial, qmi_wwan
           |            plugin: Sierra
           |      primary port: cdc-wdm0
           |             ports: ttyUSB7 (at), ttyUSB0 (qcdm), ttyUSB2 (gps),
           |                    cdc-wdm0 (qmi), cdc-wdm1 (qmi), wwan0 (net), wwan1 (net)
  -----------------------------
  Status   |             state: failed
           |     failed reason: sim-missing
           |       power state: on
           |    signal quality: 0% (cached)
  -----------------------------
  Modes    |         supported: allowed: 3g; preferred: none
           |                    allowed: 4g; preferred: none
           |                    allowed: 3g, 4g; preferred: 3g
           |                    allowed: 3g, 4g; preferred: 4g
           |           current: allowed: any; preferred: none
  -----------------------------
  Bands    |         supported: utran-1, utran-3, utran-4, utran-5, utran-8, utran-2,
           |                    eutran-1, eutran-2, eutran-3, eutran-4, eutran-5, eutran-7, eutran-8,
           |                    eutran-12, eutran-13, eutran-20, eutran-25, eutran-41
  -----------------------------
  IP       |         supported: ipv4, ipv6, ipv4v6