I am experiencing the same problem with Kubuntu 16.04 and an Huawei E1800 usb key modem. Indeed, as in the bug description, there is a workaround also for my device by issuing a switching message manually.
On kubuntu 16.04 usb_modeswitch (version 2.2.5+repack0-1ubuntu1 with data version 20151101-1) does not automatically perform the switch of huawei E1800 usb modem. This usb modem worked correctly out of the box with kubuntu 14.04. On kubuntu 14.04 one can read the vendor and device id before and after the switch by using lsusb in rapid succession: before the switch it is identified as 12d1:1446 Huawei Technologies Co., Ltd. E1552/E1800/E173 (HSPA modem) and after the switch as 12d1:1436 Huawei Technologies Co., Ltd. E173 3G Modem (modem-mode) On kubuntu 16.04 it is identified by lsusb as 12d1:1446 Huawei Technologies Co., Ltd. Broadband stick (modem on) and it does not switch automatically to the other device id. Workaround: I can issue a usb_modeswitch command and make it switch manually: sudo usb_modeswitch --verbose -J -v 0x12d1 -p 0x1446 then, looking at the lsusb output, I can read the correct id: 12d1:1436 Huawei Technologies Co., Ltd. Broadband stick and the modem is correctly recognized by the network manager. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to usb-modeswitch in Ubuntu. https://bugs.launchpad.net/bugs/1562431 Title: Huawei E3372 is not switched to modem mode automatically Status in usb-modeswitch package in Ubuntu: Triaged Bug description: This "modem key" worked out of the box for me in ubuntu 15.10. However now, in 16.04, the "usb mode switch" is not done automatically (both is the modem is plugged at boot or after). I suppose it's an udev regression. So there is no kernel problem for me. (first answered it in #1527914, also maybe related to #1431179) WORKAROUND: After plugging in the device (lsusb): Bus 002 Device 010: ID 12d1:1f01 Huawei Technologies Co., Ltd. E353/E3131 (Mass storage mode) Execute at a terminal: usb_modeswitch -J -v 0x12d1 -p 0x1f01 and now the device works as expected and can be selected in network manager. As per lsusb: Bus 002 Device 011: ID 12d1:14dc Huawei Technologies Co., Ltd. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: udev 229-3ubuntu1 ProcVersionSignature: Ubuntu 4.4.0-15.31-generic 4.4.6 Uname: Linux 4.4.0-15-generic x86_64 ApportVersion: 2.20-0ubuntu3 Architecture: amd64 CurrentDesktop: MATE Date: Sun Mar 27 03:08:34 2016 EcryptfsInUse: Yes InstallationDate: Installed on 2016-03-25 (1 days ago) InstallationMedia: Ubuntu-MATE 16.04 LTS "Xenial Xerus" - Beta amd64 (20160323.1) MachineType: LENOVO 20BWS02G00 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-15-generic root=UUID=3dd4b932-06dd-4c0b-8f63-1ee6b90969ed ro quiet splash vt.handoff=7 SourcePackage: systemd UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 01/27/2016 dmi.bios.vendor: LENOVO dmi.bios.version: JBET56WW (1.21 ) dmi.board.asset.tag: Not Available dmi.board.name: 20BWS02G00 dmi.board.vendor: LENOVO dmi.board.version: Not Defined dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrJBET56WW(1.21):bd01/27/2016:svnLENOVO:pn20BWS02G00:pvrThinkPadT450s:rvnLENOVO:rn20BWS02G00:rvrNotDefined:cvnLENOVO:ct10:cvrNone: dmi.product.name: 20BWS02G00 dmi.product.version: ThinkPad T450s dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/usb-modeswitch/+bug/1562431/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

