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[hackeron <hackeron@xxxxxxxxx>]

I am seeing something completely different and for me the issue is with
usb_modeswitch first:

This is what I see when I plug mine in:
https://gist.github.com/xanview/3a37e6eb0cf24a12908b

The key lines are:

Jan 28 16:19:23 TimeBox systemd[1]: Starting USB_ModeSwitch...
Jan 28 16:19:23 TimeBox systemd[1]: usb_modeswitch@1-1.5-1-1.5:1.0.service: main process exited, code=exited, status=1/FAILURE

It seems Ubuntu is trying to do the wrong thing, it is trying to do
systemctl start usb_modeswitch@1-1.5-1-1.5:1.0 when in reality the
command should be:

$ systemctl start usb_modeswitch@1-1.5:1.0

When I run the correct command, I see this in syslog:

Jan 28 16:34:05 TimeBox systemd[1]: Starting USB_ModeSwitch...
Jan 28 16:34:05 TimeBox usb_modeswitch_dispatcher[10502]: Could not read attribute: No such file or directory
Jan 28 16:34:06 TimeBox usb_modeswitch: switch device 12d1:14fe on 001/008
Jan 28 16:34:05 TimeBox usb_modeswitch_dispatcher[10502]: message repeated 2 times: [ Could not read attribute: No such file or directory]
Jan 28 16:34:07 TimeBox usb_modeswitch[10502]: usb_modeswitch: switched to 12d1:14fe on 1/8
Jan 28 16:34:08 TimeBox usb_modeswitch_dispatcher[10502]: Unable to open bind list file: No such file or directory
Jan 28 16:34:08 TimeBox usb_modeswitch[10502]: usb_modeswitch: add device ID 12d1:14fe to driver option
Jan 28 16:34:08 TimeBox usb_modeswitch[10502]: usb_modeswitch: please report the device ID to the Linux USB developers!
Jan 28 16:34:15 TimeBox systemd[1]: Started USB_ModeSwitch.

So seems this is an unsupported device still? (I'm on Ubuntu 15.04
Vivid)

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to network-manager in Ubuntu.
https://bugs.launchpad.net/bugs/1330262

Title:
  HUAWEI E3531 not connected on Ubuntu 14.04

Status in NetworkManager:
  Unknown
Status in network-manager package in Ubuntu:
  Triaged

Bug description:
  PC: Dell 3721
  OS:Ubuntu 14.04 i386
  DE: KDE
  Kernel: 3.13.0-29 and 3.15.0 (Stable)
  usb-modeswitch 2.2.0 (Debian Unstable)/2.1.1

  A connection is defined and a modem in the system, but an error while connecting: "Connection deactivated".
  Upgrading to kernel 3.15 (stable) and usb-modeswitch (2.2.0) not solve the problem.
  LOGS:
  dmesg
  [   84.302769] usb 3-4: new high-speed USB device number 3 using xhci_hcd
  [   84.431625] usb 3-4: New USB device found, idVendor=12d1, idProduct=1506
  [   84.431632] usb 3-4: New USB device strings: Mfr=1, Product=2, SerialNumber=0
  [   84.431635] usb 3-4: Product: Mobile Connect
  [   84.431638] usb 3-4: Manufacturer: ......
  [   84.731329] usbcore: registered new interface driver usbserial
  [   84.731348] usbcore: registered new interface driver usbserial_generic
  [   84.731362] usbserial: USB Serial support registered for generic
  [   84.762404] usbcore: registered new interface driver option
  [   84.762424] usbserial: USB Serial support registered for GSM modem (1-port)
  [   84.762598] option 3-4:1.0: GSM modem (1-port) converter detected
  [   84.762763] usb 3-4: GSM modem (1-port) converter now attached to ttyUSB0
  [   84.762820] option 3-4:1.1: GSM modem (1-port) converter detected
  [   84.762947] usb 3-4: GSM modem (1-port) converter now attached to ttyUSB1

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