Comment 3 for bug 1607001

I have Huawei E1550 on Ubuntu 16.04 LTS.
Bus 003 Device 006: ID 12d1:1446 Huawei Technologies Co., Ltd. Broadband stick (modem on)

In syslog I have:

Oct 9 14:25:47 u1604-jfv60 kernel: [ 492.899483] usb 3-2: new full-speed USB device number 7 using xhci_hcd
Oct 9 14:25:47 u1604-jfv60 kernel: [ 493.099297] usb 3-2: New USB device found, idVendor=12d1, idProduct=1446
Oct 9 14:25:47 u1604-jfv60 kernel: [ 493.099307] usb 3-2: New USB device strings: Mfr=2, Product=1, SerialNumber=0
Oct 9 14:25:47 u1604-jfv60 kernel: [ 493.099312] usb 3-2: Product: HUAWEI Mobile
Oct 9 14:25:47 u1604-jfv60 kernel: [ 493.099317] usb 3-2: Manufacturer: HUAWEI Technology
Oct 9 14:25:47 u1604-jfv60 kernel: [ 493.105662] usb-storage 3-2:1.0: USB Mass Storage device detected
Oct 9 14:25:47 u1604-jfv60 kernel: [ 493.105923] scsi host15: usb-storage 3-2:1.0
Oct 9 14:25:47 u1604-jfv60 kernel: [ 493.106247] usb-storage 3-2:1.1: USB Mass Storage device detected
Oct 9 14:25:47 u1604-jfv60 kernel: [ 493.106447] scsi host16: usb-storage 3-2:1.1
Oct 9 14:25:47 u1604-jfv60 mtp-probe: checking bus 3, device 7: "/sys/devices/pci0000:00/0000:00:14.0/usb3/3-2"
Oct 9 14:25:47 u1604-jfv60 mtp-probe: bus: 3, device: 7 was not an MTP device
Oct 9 14:25:48 u1604-jfv60 systemd[1]: Starting USB_ModeSwitch_3-2:1.0...
Oct 9 14:25:48 u1604-jfv60 usb_modeswitch_dispatcher[2693]: Could not read attribute: No such file or directory
Oct 9 14:25:48 u1604-jfv60 kernel: [ 494.108053] scsi 16:0:0:0: Direct-Access HUAWEI MMC Storage 2.31 PQ: 0 ANSI: 2
Oct 9 14:25:48 u1604-jfv60 kernel: [ 494.109269] sd 16:0:0:0: Attached scsi generic sg3 type 0
Oct 9 14:25:48 u1604-jfv60 kernel: [ 494.110989] scsi 15:0:0:0: CD-ROM HUAWEI Mass Storage 2.31 PQ: 0 ANSI: 2
Oct 9 14:25:48 u1604-jfv60 kernel: [ 494.121849] sd 16:0:0:0: [sdd] Attached SCSI removable disk
Oct 9 14:25:48 u1604-jfv60 kernel: [ 494.125106] sr 15:0:0:0: [sr0] scsi-1 drive
Oct 9 14:25:48 u1604-jfv60 kernel: [ 494.125463] sr 15:0:0:0: Attached scsi CD-ROM sr0
Oct 9 14:25:48 u1604-jfv60 kernel: [ 494.125668] sr 15:0:0:0: Attached scsi generic sg4 type 5
Oct 9 14:25:48 u1604-jfv60 kernel: [ 494.245860] xhci_hcd 0000:00:14.0: WARN Event TRB for slot 6 ep 2 with no TDs queued?
Oct 9 14:25:48 u1604-jfv60 usb_modeswitch_dispatcher[2693]: message repeated 3 times: [ Could not read attribute: No such file or directory]
Oct 9 14:25:49 u1604-jfv60 usb_modeswitch: switch device 12d1:1446 on 003/007
Oct 9 14:25:50 u1604-jfv60 usb_modeswitch_dispatcher[2693]: Could not read attribute: No such file or directory
Oct 9 14:25:50 u1604-jfv60 usb_modeswitch[2693]: usb_modeswitch: switched to 12d1:1446 on 3/7
Oct 9 14:25:51 u1604-jfv60 usb_modeswitch_dispatcher[2693]: Unable to open bind list file: No such file or directory
Oct 9 14:25:51 u1604-jfv60 usb_modeswitch[2693]: usb_modeswitch: add device ID 12d1:1446 to driver option
Oct 9 14:25:51 u1604-jfv60 usb_modeswitch[2693]: usb_modeswitch: please report the device ID to the Linux USB developers!
Oct 9 14:25:58 u1604-jfv60 systemd[1]: Started USB_ModeSwitch_3-2:1.0.

Modem does not connect to 3G network.