Difficulty enabling modems

[Marc Murphy]

Hi,
Recently built latest stable release of modem manager and trying to use with qmi modems.

# mmcli -V

mmcli 1.4.0
Copyright (2011) Aleksander Morgado
License GPLv2+: GNU GPL version 2 or later <http://gnu.org/licenses/gpl-2.0.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

The modems are seen and can look at the status of them OK using mmcli;

# mmcli -L

Found 1 modems:
        /org/freedesktop/ModemManager1/Modem/0 [QUALCOMM INCORPORATED] 8

# mmcli -m 0

/org/freedesktop/ModemManager1/Modem/0 (device id '59c4abebe27451fb8e9d56b08f86f68c1eb47be4')
  -------------------------
  Hardware |   manufacturer: 'QUALCOMM INCORPORATED'
           |          model: '8'
           |       revision: '8200C-FACPACZQ-10384  1  [Nov 08 2010 15:00:00]'
           |      supported: 'gsm-umts'
           |        current: 'gsm-umts'
           |   equipment id: '354283040015178'
  -------------------------
  System   |         device: '/sys/devices/ocp.2/47400000.usb/47401400.usb/musb-hdrc.0.auto/usb1/1-1/1-1.2'
           |        drivers: 'qmi_wwan'
           |         plugin: 'Huawei'
           |   primary port: 'cdc-wdm0'
           |          ports: 'cdc-wdm0 (qmi), wwan0 (net)'
  -------------------------
  Numbers  |           own : 'unknown'
  -------------------------
  Status   |           lock: 'unknown'
           | unlock retries: 'unknown'
           |          state: 'failed'
           |  failed reason: 'sim-missing'
           |    power state: 'unknown'
           |    access tech: 'unknown'
           | signal quality: '0' (cached)
  -------------------------
  Modes    |      supported: 'allowed: 2g; preferred: none
           |                  allowed: 3g; preferred: none
           |                  allowed: 2g, 3g; preferred: none
           |                  allowed: 2g, 3g; preferred: 2g
           |                  allowed: 2g, 3g; preferred: 3g'
           |        current: 'allowed: any; preferred: none'
  -------------------------
  Bands    |      supported: 'unknown'
           |        current: 'unknown'
  -------------------------
  IP       |      supported: 'ipv4, ipv6, ipv4v6'
  -------------------------
  SIM      |           path: 'none'

  -------------------------
  Bearers  |          paths: 'none'

When I try an enable the modem it complains that the enable method isn't enabled ?????

# mmcli -m 0 -e
error: couldn't enable the modem: 'GDBus.Error:org.freedesktop.DBus.Error.UnknownMethod: Method Enable is not implemented on interface org.freedesktop.ModemManager1.Modem'

What tests can I perform to try and find the issue as I have 3 different modems that are exhibiting the same issue.

Any help appreciated.

Marc