<div dir="ltr">Hi all,<div><br></div><div>I'm trying to enable the LTE-FDD bands but getting the following error:</div><div><br></div><div>pi@okamoto:~ $ sudo mmcli -m 0<br>  --------------------------<br>  General  |      dbus path: /org/freedesktop/ModemManager1/Modem/0<br>           |      device id: -<br>  --------------------------<br>  Hardware |   manufacturer: QUALCOMM INCORPORATED<br>           |          model: 0<br>           |       revision: QA30002.1.1_MV11  1  [Dec 22 2015 22:00:00]<br>           |   h/w revision: 20002<br>           |      supported: gsm-umts, lte<br>           |                 cdma-evdo, lte<br>           |                 lte<br>           |                 cdma-evdo, gsm-umts, lte<br>           |        current: lte<br>           |   equipment id: -<br>  --------------------------<br>  System   |         device: /sys/devices/platform/soc/3f980000.usb/usb1/1-1/1-1.4<br>           |        drivers: qmi_wwan<br>           |         plugin: Generic<br>           |   primary port: cdc-wdm0<br>           |          ports: cdc-wdm0 (qmi), wwan0 (net)<br>  --------------------------<br>  Status   |           lock: sim-pin2<br>           | unlock retries: sim-pin (3), sim-pin2 (3), sim-puk (10), sim-puk2 (10)<br>           |          state: disabled<br>           |    power state: on<br>           | signal quality: 0% (cached)<br>  --------------------------<br>  Modes    |      supported: allowed: 2g; preferred: none<br>           |                 allowed: 3g; preferred: none<br>           |                 allowed: 2g, 3g; preferred: 3g<br>           |                 allowed: 2g, 3g; preferred: 2g<br>           |                 allowed: 2g, 4g; preferred: 4g<br>           |                 allowed: 2g, 4g; preferred: 2g<br>           |                 allowed: 3g, 4g; preferred: 3g<br>           |                 allowed: 3g, 4g; preferred: 4g<br>           |                 allowed: 2g, 3g, 4g; preferred: 4g<br>           |                 allowed: 2g, 3g, 4g; preferred: 3g<br>           |                 allowed: 2g, 3g, 4g; preferred: 2g<br>           |        current: allowed: 4g; preferred: none<br>  --------------------------<br>  Bands    |      supported: egsm, dcs, utran-1, utran-8, eutran-1, eutran-3, eutran-8,<br>           |                 eutran-38, eutran-39, eutran-40, eutran-41<br>           |        current: egsm, dcs, utran-1, utran-8, eutran-38, eutran-39,<br>           |                 eutran-40, eutran-41<br>  --------------------------<br>  IP       |      supported: ipv4, ipv6, ipv4v6<br>  --------------------------<br>  3GPP     |           imei: -<br>  --------------------------<br>  SIM      |      dbus path: /org/freedesktop/ModemManager1/SIM/0<br><br></div><div>pi@okamoto:~ $ sudo mmcli -m 0 --set-current-bands='egsm|dcs|utran-1|utran-8|eutran-1|eutran-3|eutran-8|eutran-38|eutran-39|eutran-40|eutran-41'<br>error: couldn't set current bands: 'GDBus.Error:org.freedesktop.DBus.Error.NoReply: Message recipient disconnected from message bus without replying'<br></div><div><br></div><div>From the log:</div><div>ModemManager[9479]: <debug> [1592058532.908774] Messaging capabilities supported<br>ModemManager[9479]: <debug> [1592058532.909798] Supported storages loaded:<br>ModemManager[9479]: <debug> [1592058532.910080]   mem1 (list/read/delete) storages: 'sm, me'<br>ModemManager[9479]: <debug> [1592058532.910259]   mem2 (write/send) storages:       'sm, me'<br>ModemManager[9479]: <debug> [1592058532.910411]   mem3 (reception) storages:        'sm, me'<br>ModemManager[9479]: <debug> [1592058532.911146] Couldn't initialize current storages: 'No AT port available to run command'<br>ModemManager[9479]: <debug> [1592058532.913004] Voice support check failed: 'No AT port available to run command'<br>ModemManager[9479]: <debug> [1592058532.913483] Couldn't initialize interface: 'Voice not supported'<br>ModemManager[9479]: <debug> [1592058532.914928] Time support check failed: 'No AT port available to run command'<br>ModemManager[9479]: <debug> [1592058532.916613] Couldn't initialize interface: 'Time not supported'<br>ModemManager[9479]: <debug> [1592058532.918224] Extended signal capabilities supported<br>ModemManager[9479]: <debug> [1592058532.921935] OMA capabilities not supported<br>ModemManager[9479]: <debug> [1592058532.923242] Couldn't initialize interface: 'OMA not supported'<br>ModemManager[9479]: <info>  [1592058532.928803] Modem: state changed (unknown -> disabled)<br>ModemManager[9479]: <debug> [1592058532.930787] modem properly initialized<br>ModemManager[9479]: <debug> [1592058532.944847] [device /sys/devices/platform/soc/3f980000.usb/usb1/1-1/1-1.4] exported modem at path '/org/freedesktop/ModemManager1/Modem/0'<br>ModemManager[9479]: <debug> [1592058532.947256] [device /sys/devices/platform/soc/3f980000.usb/usb1/1-1/1-1.4]    plugin:  Generic<br>ModemManager[9479]: <debug> [1592058532.947840] [device /sys/devices/platform/soc/3f980000.usb/usb1/1-1/1-1.4]    vid:pid: 0x2020:0x2033<br>ModemManager[9479]: <debug> [1592058547.672452] Setting new list of bands: 'egsm, dcs, utran-1, utran-8, eutran-1, eutran-3, eutran-8, eutran-38, eutran-39, eutran-40, eutran-41'<br>Segmentation fault<br>pi@okamoto:~ $ <br></div><div><br></div><div><br></div><div>Looks like MM crashed too so I wonder if it has something to do with my setup please?</div><div><br></div><div>Thanks,</div><div>Leo</div><div><br></div><div><br></div></div>