Upgrade to ModemManager fsils

[karsten at miwire.net]

We have upgraded some of our units from a old version of openwrt to a new openwrt version with ModemManager.
Several of the update works OK. But other update fails. The main symptom is modem manager do not connect
Reboot of CPU which run openwrt do not change anything. Nor reboot the Quectell modem change the situation

New SW versions are
OpenWrt 19.07.2
ModemManager daemon 1.14.12
mmcli 1.14.12

We have noticed suspicious differences when using the mmcli -m xx cmd on unit which work OK contra on unit which fail after upgrade.Remark the missing parameters on fail unit
The suspicious differences are:
group parameter value on fail unit value on OK unit
-----------------------------------------------------------------------------------------------------
Hardware carrier configCommercial-TMO_VoLTEROW_Generic_3GPP
System driversoption, qmi_wwanqmi_wwan, option
Status locksim-pin2
unlock retriessim-pin (3), sim-pin2 (3), sim-puk (10), sim-puk2 (10)
statefailedconnected
failed reasonsim-missing

modes current:allowed: any; preferred: noneallowed:4g; preferred: none
Bands currentegsm, dcs, pcs, g850, utran-1, utran-4, utran-6, 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-18, eutran-19,

eutran-20, eutran-25, eutran-26, eutran-28, eutran-38, eutran-39,eutran-40, eutran-41, utran-19
3GPP imei867698040897400
operator id73001
operator nameENTEL
registration:home
3GPP EPS ue mode of operationcsps-2
initial bearer dbus path/org/freedesktop/ModemManager1/Bearer/2
initial bearer ip type:ipv4v6
SIM dbus path:/org/freedesktop/ModemManager1/SIM/0
Bearer dbus path:/org/freedesktop/ModemManager1/Bearer/1


The next table show all output from mmcli -m 0; except the 2. columns which is manual inserted.

The lines with "-" in 2. second column are also manual inserted
+------A “-” in this column indicate value is from a failing unit| Note if failing unit print nothing then in the table the row is empty in last column.

| Lines from fail unit are always printed before thecorresponding line from OK unit
| “+“ in the column indicate value is from a OK unit
-----------V----------------------
Hardware | | manufacturer: QUALCOMM INCORPORATED
| | model: QUECTEL Mobile Broadband Module
| | firmware revision: EG25GGBR07A07M2G
|-|carrier config:Commercial-TMO_VoLTE|+|carrier config:ROW_Generic_3GPP
| | carrier config revision: 05010505
| | h/w revision: 10000
| | supported: gsm-umts, lte
| | current: gsm-umts, lte
| | equipment id: 867698040896337
-----------------------------------
System | | device: /sys/devices/platform/ehci-platform/usb1/1-1
|-|drivers:option, qmi_wwan

|+|drivers:qmi_wwan, option
| | plugin: quectel
| | primary port: cdc-wdm0
| | ports: cdc-wdm0 (qmi), ttyUSB0 (qcdm), ttyUSB1 (gps),
| | ttyUSB2 (at), ttyUSB3 (at), wwan0 (net)
-----------------------------------
Status |-|
|+|lock:sim-pin2
|-|
|+| unlock retries:sim-pin (3), sim-pin2 (3), sim-puk (10), sim-puk2 (10)

|-|state:failed|+|state:connected|-|failed reason:sim-missing|+|
| | power state: on
| | signal quality: 0% (cached)

-----------------------------------
Modes | | supported: allowed: 2g; preferred: none
| | allowed: 3g; preferred: none
| | allowed: 4g; preferred: none
| | allowed: 2g, 3g; preferred: 3g
| | allowed: 2g, 3g; preferred: 2g
| | allowed: 2g, 4g; preferred: 4g
| | allowed: 2g, 4g; preferred: 2g
| | allowed: 3g, 4g; preferred: 4g
| | allowed: 3g, 4g; preferred: 3g
| | allowed: 2g, 3g, 4g; preferred: 4g
| | allowed: 2g, 3g, 4g; preferred: 3g
| | allowed: 2g, 3g, 4g; preferred: 2g
|-| current:allowed: any; preferred: none|+|current:allowed:4g; preferred: none-----------------------------------
Bands | | supported: egsm, dcs, pcs, g850, utran-1, utran-4, utran-6, 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-18, eutran-19,
| | eutran-20, eutran-25, eutran-26, eutran-28, eutran-38, eutran-39,
| | eutran-40, eutran-41, utran-19
|-|
|+|current:egsm, dcs, pcs, g850, utran-1, utran-4, utran-6, 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-18, eutran-19,
||eutran-20, eutran-25, eutran-26, eutran-28, eutran-38, eutran-39,||eutran-40, eutran-41, utran-19
------------------------------------
IP | | supported: ipv4, ipv6, ipv4v6
------------------------------------
3GPP|-|
|+| imei:867698040897400
|-|
|+| erator id:73001
|-|
|+|operator name:ENTEL
|-|
|+|registration:home
------------------------------------
3GPP EPS |-|
|+| ue mode of operation:csps-2
|-|
|+|initial bearer dbus path:/org/freedesktop/ModemManager1/Bearer/2
|-|
|+|initial bearer ip type:ipv4v6
------------------------------------
SIM|-|
|+|dbus path:/org/freedesktop/ModemManager1/SIM/0
------------------------------------
Bearer|-|
|+|dbus path:/org/freedesktop/ModemManager1/Bearer/1



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