Huawei e1550

 Bus 001 Device 012: ID 12d1:1001 Huawei Technologies Co., Ltd. E169/E620/E800 HSDPA Modem

│devices % systemctl status ModemManager
│● ModemManager.service - Modem Manager
│   Loaded: loaded (/usr/lib/systemd/system/ModemManager.service; enabled; vendor preset: disabled)
│   Active: active (running) since Wed 2016-02-10 13:46:34 EET; 33min ago
│ Main PID: 24235 (ModemManager)
│    Tasks: 3 (limit: 512)
│   CGroup: /system.slice/ModemManager.service
│           └─24235 /usr/bin/ModemManager
│
│Feb 10 14:18:39 Deviling ModemManager[24235]: <warn>  (Plugin Manager) (Cinterion) [ttyUSB0] error when checking support: '(tty...ctory'
│Feb 10 14:18:39 Deviling ModemManager[24235]: <warn>  (ttyUSB0) could not open serial device (2)
│Feb 10 14:18:39 Deviling ModemManager[24235]: <warn>  (Plugin Manager) (Iridium) [ttyUSB0] error when checking support: '(tty/t...ctory'
│Feb 10 14:18:39 Deviling ModemManager[24235]: <warn>  (ttyUSB0) could not open serial device (2)
│Feb 10 14:18:39 Deviling ModemManager[24235]: <warn>  (Plugin Manager) (Nokia) [ttyUSB0] error when checking support: '(tty/tty...ctory'
│Feb 10 14:18:39 Deviling ModemManager[24235]: <warn>  (ttyUSB0) could not open serial device (2)
│Feb 10 14:18:39 Deviling ModemManager[24235]: <warn>  (Plugin Manager) (Via CBP7) [ttyUSB0] error when checking support: '(tty/...ctory'
│Feb 10 14:18:39 Deviling ModemManager[24235]: <warn>  (ttyUSB0) could not open serial device (2)
│Feb 10 14:18:39 Deviling ModemManager[24235]: <warn>  (Plugin Manager) (Generic) [ttyUSB0] error when checking support: '(tty/t...ctory'
│Feb 10 14:18:40 Deviling ModemManager[24235]: <info>  Couldn't find support for device at '/sys/devices/pci0000:00/0000:00:14.0...plugin
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