Cannot get sms to work on Verizon

[kabone]

I've been trying for hours to get mmcli to send a text via terminal on Verizon with no luck. It works with AT&T. I have a data connection on Verizon but no sms. Any guidance?

When I try to send via

mmcli -m 0 --messaging-create-sms="text='Hello world',number=+1xxxxxxxxxx,delivery-report-request=yes"
Successfully created new SMS: /org/freedesktop/ModemManager1/SMS/1
mmcli -s 1 --send

It hangs for a long time then says:
error: couldn't send the SMS: 'Timeout was reached'

sudo mmcli -v -s 1 --send
[06 Oct 2021, 23:24:14] [Debug] Assuming '1' is the SMS index
[06 Oct 2021, 23:24:14] [Debug] ModemManager process found at ':1.14'
[06 Oct 2021, 23:24:14] [Debug] Sms found at '/org/freedesktop/ModemManager1/SMS/1'

error: couldn't send the SMS:
'GDBus.Error:org.freedesktop.libmbim.Error.Core.Timeout: Couldn't send SMS part: Transaction timed out'

If I try to send via AT commands it gives Error 350. When I moved back to another phone or other device running Linux with a different modem it sends with no problem with commands above. All msgs come in and send once the sim is placed in another device.

Here's the details from mmcli -m 0

--------------------------------
  General  |            dbus path: /org/freedesktop/ModemManager1/Modem/0
           |            device id: 
  --------------------------------
  Hardware |         manufacturer: Sierra Wireless, Incorporated
           |                model: DW5811e Snapdragon™ X7 LTE
           |    firmware revision: SWI9X30C_02.33.03.00
           |       carrier config: default
           |         h/w revision: EM7455
           |            supported: gsm-umts, lte
           |              current: gsm-umts, lte
           |         equipment id: 
  --------------------------------
  System   |               device: /sys/devices/pci0000:00/0000:00:14.0/usb1/1-3
           |              drivers: qcserial, cdc_mbim
           |               plugin: Dell
           |         primary port: cdc-wdm2
           |                ports: cdc-wdm2 (mbim), ttyUSB2 (at), wwan0 (net), ttyUSB0 (qcdm)
  --------------------------------
  Numbers  |                  own: +1xxxxxxxxxx
  --------------------------------
  Status   |       unlock retries: sim-pin2 (3)
           |                state: registered
           |          power state: on
           |          access tech: lte
           |       signal quality: 35% (cached)
  --------------------------------
  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-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-26, eutran-29, 
           |                       eutran-30, eutran-41
           |              current: 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-26, eutran-29, 
           |                       eutran-30, eutran-41
  --------------------------------
  IP       |            supported: ipv4, ipv6, ipv4v6
  --------------------------------
  3GPP     |                 imei: 
           |        enabled locks: fixed-dialing
           |          operator id: xxxxxx
           |        operator name: Verizon
           |         registration: home
  --------------------------------
  3GPP EPS | ue mode of operation: csps-2
  --------------------------------
  SIM      |            dbus path: /org/freedesktop/ModemManager1/SIM/0

ATI3
Manufacturer: Sierra Wireless, Incorporated
Model: EM7455
Revision: SWI9X30C_02.33.03.00 r8209 CARMD-EV-FRMWR2 2019/08/28 20:59:30
MEID: XXXXX
IMEI: XXXXX
IMEI SV: 20
FSN: LF617590670410
+GCAP: +CGSM

AT!IMPREF?

!IMPREF:
 preferred fw version:    02.33.03.00
 preferred carrier name:  GENERIC
 preferred config name:   GENERIC_002.072_000
 preferred subpri index:  000
 current fw version:      02.33.03.00
 current carrier name:    GENERIC
 current config name:     GENERIC_002.072_000
 current subpri index:    000

OK

AT!GSTATUS?

!GSTATUS:
Current Time:  243              Temperature: 30
Reset Counter: 1                Mode:        ONLINE
System mode:   LTE              PS state:    Attached
LTE band:      B4               LTE bw:      5 MHz
LTE Rx chan:   2175             LTE Tx chan: 20000
LTE CA state:  NOT ASSIGNED
EMM state:     Registered       Normal Service
RRC state:     RRC Idle
IMS reg state: No Srv

PCC RxM RSSI:  -75              RSRP (dBm):  -99
PCC RxD RSSI:  -100             RSRP (dBm):  -137
Tx Power:      --               TAC:         0B01 (2817)
RSRQ (dB):     -10.0            Cell ID:     002BE617 (2876951)
SINR (dB):     15.2

AT+CSCA?
+CSCA: "+19037029920",145

AT+CMGF=1
OK
AT+CMGS="xxxxxxxxxx"
> Testing

+CMS ERROR: 350

[danielewood]

Did some quick googling and it seems to be a CDMA-capable carrier specific issue.

See: https://forum.pine64.org/showthread.php?tid=9838&page=2

Someone was able to fix it by calling Verizon and getting them to provision their SIM as CDMA-less and that fixed it. All I have to say is, good luck with that.

It may be worth posting on the ModemManager mailing list.

There may be something they can do to solve the issue for all users of ModemManager, if you are willing to engage with them to provide debug information or access. I would make sure you point to the PinePhone thread when you do so.

One other thing you might want to consider is flashing the Verizon version of the firmware, that may change a modem setting to make SMS work. That is likely one of the first things the MM people will ask you to do.

To flash the latest Verizon firmware, this should do the trick:
export SWI9X30C_ZIP="swi9x30c_02.33.03.00_verizon_002.079_001.zip"
bash autoflash-7455.sh

[kabone]

Awesome I will try these things and report back my results. Thanks very much!