<div>We have upgraded some of our units from a old version of openwrt to a new openwrt version with ModemManager. </div><div>Several of the update works OK. But other update fails. The main symptom is modem manager do not connect </div><div>Reboot of CPU which run openwrt do not change anything. Nor reboot the Quectell modem change the situation </div><div> </div><div>New SW versions are </div><div> OpenWrt 19.07.2 </div><div> ModemManager daemon 1.14.12 </div><div> mmcli 1.14.12 </div><div> </div><div>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 </div><div>The suspicious differences are: </div><div> group parameter value on fail unit value on OK unit </div><div>----------------------------------------------------------------------------------------------------- </div><div>Hardware carrier config Commercial-TMO_VoLTE ROW_Generic_3GPP </div><div>System drivers option, qmi_wwan qmi_wwan, option </div><div>Status lock sim-pin2 </div><div> unlock retries sim-pin (3), sim-pin2 (3), sim-puk (10), sim-puk2 (10) </div><div> state failed connected </div><div> failed reason sim-missing </div><div>modes current: allowed: any; preferred: none allowed: 4g; preferred: none</div><div>Bands 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,</div><div> eutran-7, eutran-8, eutran-12, eutran-13, eutran-18, eutran-19, </div><div> eutran-20, eutran-25, eutran-26, eutran-28, eutran-38, eutran-39, </div><div> eutran-40, eutran-41, utran-19 </div><div>3GPP imei 867698040897400 </div><div> operator id 73001 </div><div> operator name ENTEL </div><div> registration: home </div><div>3GPP EPS ue mode of operation csps-2 </div><div> initial bearer dbus path /org/freedesktop/ModemManager1/Bearer/2 </div><div> initial bearer ip type: ipv4v6 </div><div>SIM dbus path: /org/freedesktop/ModemManager1/SIM/0 </div><div>Bearer dbus path: /org/freedesktop/ModemManager1/Bearer/1 </div><div> </div><div> </div><div>The next table show all output from mmcli -m 0; except the 2. columns which is manual inserted. </div><div>The lines with "-" in 2. second column are also manual inserted </div><div> +------A “-” in this column indicate value is from a failing unit</div><div> | Note if failing unit print nothing then in the table the row is empty in last column. </div><div> | Lines from fail unit are always printed before the corresponding line from OK unit</div><div> | “+“ in the column indicate value is from a OK unit </div><div>-----------V---------------------- Hardware | | manufacturer: QUALCOMM INCORPORATED | | model: QUECTEL Mobile Broadband Module | | firmware revision: EG25GGBR07A07M2G |-| carrier config: Commercial-TMO_VoLTE</div><div> |+| carrier config: ROW_Generic_3GPP </div><div> | | carrier config revision: 05010505 </div><div> | | h/w revision: 10000 </div><div> | | supported: gsm-umts, lte </div><div> | | current: gsm-umts, lte </div><div> | | equipment id: 867698040896337 </div><div> ----------------------------------- </div><div> System | | device: /sys/devices/platform/ehci-platform/usb1/1-1 </div><div> |-| drivers: option, qmi_wwan </div><div> |+| drivers: qmi_wwan, option </div><div> | | plugin: quectel </div><div> | | primary port: cdc-wdm0 </div><div> | | ports: cdc-wdm0 (qmi), ttyUSB0 (qcdm), ttyUSB1 (gps), </div><div> | | ttyUSB2 (at), ttyUSB3 (at), wwan0 (net) </div><div> ----------------------------------- </div><div> Status |-| </div><div> |+| lock: sim-pin2 </div><div> |-| </div><div> |+| unlock retries: sim-pin (3), sim-pin2 (3), sim-puk (10), sim-puk2 (10) </div><div> |-| state: failed |+| state: connected</div><div> |-| failed reason: sim-missing </div><div> |+| </div><div> | | power state: on </div><div> | | signal quality: 0% (cached) </div><div> ----------------------------------- 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</div><div>----------------------------------- </div><div> Bands | | supported: egsm, dcs, pcs, g850, utran-1, utran-4, utran-6, utran-5, </div><div> | | utran-8, utran-2, eutran-1, eutran-2, eutran-3, eutran-4, eutran-5, </div><div> | | eutran-7, eutran-8, eutran-12, eutran-13, eutran-18, eutran-19, </div><div> | | eutran-20, eutran-25, eutran-26, eutran-28, eutran-38, eutran-39, </div><div> | | eutran-40, eutran-41, utran-19 </div><div> |-| </div><div> |+| current: egsm, dcs, pcs, g850, utran-1, utran-4, utran-6, utran-5, </div><div> | | utran-8, utran-2, eutran-1, eutran-2, eutran-3, eutran-4, eutran-5, </div><div> | | eutran-7, eutran-8, eutran-12, eutran-13, eutran-18, eutran-19, </div><div> | | eutran-20, eutran-25, eutran-26, eutran-28, eutran-38, eutran-39, </div><div> | | eutran-40, eutran-41, utran-19 </div><div>------------------------------------ </div><div> IP | | supported: ipv4, ipv6, ipv4v6 </div><div>------------------------------------ </div><div> 3GPP |-| </div><div> |+| imei: 867698040897400 </div><div> |-| </div><div> |+| erator id: 73001 </div><div> |-| </div><div> |+| operator name: ENTEL </div><div> |-| </div><div> |+| registration: home </div><div> ------------------------------------ </div><div> 3GPP EPS |-| </div><div> |+| ue mode of operation: csps-2 </div><div> |-| </div><div> |+|initial bearer dbus path: /org/freedesktop/ModemManager1/Bearer/2 </div><div> |-| </div><div> |+| initial bearer ip type: ipv4v6 </div><div> ------------------------------------ </div><div> SIM |-| </div><div> |+| dbus path: /org/freedesktop/ModemManager1/SIM/0 </div><div> ------------------------------------ </div><div> Bearer |-| </div><div> |+| dbus path: /org/freedesktop/ModemManager1/Bearer/1 </div> <div> </div>