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 Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1424181 Title: Huawei E3372 USB modem not always detected Status in linux package in Ubuntu: Incomplete Bug description: What happened: I have to unplug and plug my Huawei E3372 USB modem in order to connect to the Internet. Otherwise the Internet connection is not established. The problem is present in kernel versions 3.13.0-45 and 3.19.0-031900. However, xubuntu 12.04 works fine. Expected to happen: The computer should establish the Internet connection automatically. Steps to reproduce the bug: Plug the USB modem into the computer and switch the computer on. I use Ubuntu 14.04.2 LTS. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-45-generic 3.13.0-45.74 ProcVersionSignature: Ubuntu 3.13.0-45.74-generic 3.13.11-ckt13 Uname: Linux 3.13.0-45-generic x86_64 NonfreeKernelModules: wl ApportVersion: 2.14.1-0ubuntu3.7 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: tohoyn 2041 F.... pulseaudio /dev/snd/controlC1: tohoyn 2041 F.... pulseaudio CurrentDesktop: Unity Date: Sat Feb 21 14:48:27 2015 HibernationDevice: RESUME=UUID=a5d87b0f-a635-499b-9343-7315a2a0e6c9 InstallationDate: Installed on 2014-05-28 (269 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) MachineType: LENOVO 20238 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-45-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.13.0-45-generic N/A linux-backports-modules-3.13.0-45-generic N/A linux-firmware 1.127.11 SourcePackage: linux StagingDrivers: rts5139 UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 12/07/2013 dmi.bios.vendor: LENOVO dmi.bios.version: 79CN44WW(V3.03) dmi.board.asset.tag: No Asset Tag dmi.board.name: INVALID dmi.board.vendor: LENOVO dmi.board.version: 31900058Std dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Lenovo G510 dmi.modalias: dmi:bvnLENOVO:bvr79CN44WW(V3.03):bd12/07/2013:svnLENOVO:pn20238:pvrLenovoG510:rvnLENOVO:rnINVALID:rvr31900058Std:cvnLENOVO:ct10:cvrLenovoG510: dmi.product.name: 20238 dmi.product.version: Lenovo G510 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1424181/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp