Hi Aleksander,
It seems "mmcli -m 0 -firmware-list" is crashing modemmanager. There is no
debug output also in -debug mode. Please see last two commands in bottom of
this email. I'm running MM 1.12.0 (in openwrt)
root@OpenWrt:/# mmcli -m 0
--------------------------------
General | dbus path: /org/freedesktop/ModemManager1/Modem/0
| device id: 1f75cd7f52f1f8d71fed0aeb735b4c9c28e3b338
--------------------------------
Hardware | manufacturer: Sierra Wireless, Incorporated
| model: Sierra Wireless EM7430 Qualcomm(r)
Snapdragon(tm) X7 LTE-A
| firmware revision: SWI9X30C_02.30.03.00
| carrier config: default
| h/w revision: EM7430
| supported: gsm-umts, lte
| current: gsm-umts, lte
| equipment id: 359075062306476
--------------------------------
System | device:
/sys/devices/platform/soc/soc:internal-regs/f10f8000.usb3/usb5/5-1
| drivers: qcserial, cdc_mbim
| plugin: Sierra
| primary port: cdc-wdm0
| ports: ttyUSB0 (qcdm), ttyUSB1 (gps), ttyUSB2 (at),
| cdc-wdm0 (mbim), wwan0 (net)
--------------------------------
Numbers | own: 9108813566
--------------------------------
Status | unlock retries: sim-pin2 (3)
| state: connected
| power state: on
| access tech: lte
| signal quality: 0% (recent)
--------------------------------
Modes | supported: allowed: 3g; preferred: none
| allowed: 4g; preferred: none
| allowed: 3g, 4g; preferred: 3g
| allowed: 3g, 4g; preferred: 4g
| current: allowed: 4g; preferred: none
--------------------------------
Bands | supported: utran-1, utran-6, utran-5, utran-8, utran-9,
eutran-1,
| eutran-3, eutran-5, eutran-7, eutran-8,
eutran-18, eutran-19,
| eutran-21, eutran-28, eutran-38, eutran-39,
eutran-40, eutran-41,
| utran-19
| current: eutran-1, eutran-3, eutran-5, eutran-7,
eutran-8,
| eutran-18, eutran-19, eutran-21, eutran-28,
eutran-38, eutran-39,
| eutran-40, eutran-41
--------------------------------
IP | supported: ipv4, ipv6, ipv4v6
--------------------------------
3GPP | imei: 359075062306476
| enabled locks: fixed-dialing
| operator id: 40445
| operator name: airtel
| registration: home
--------------------------------
3GPP EPS | ue mode of operation: csps-2
--------------------------------
SIM | dbus path: /org/freedesktop/ModemManager1/SIM/0
--------------------------------
Bearer | dbus path: /org/freedesktop/ModemManager1/Bearer/0
root@OpenWrt:/# mmcli -m 0 --firmware-list
error: couldn't list firmware images:
'GDBus.Error:org.freedesktop.DBus.Error.NoReply: Message recipient disconnected
from message bus without replying'
root@OpenWrt:/# mmcli -m 0
error: couldn't find modem at '/org/freedesktop/ModemManager1/Modem/0'
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