How to set modem ON (Huawei Mobile broadband)

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I have Ubuntu 14.04 and problem with Mobile Internet (Huawei USB-stick). When stick is plugged in upper left USB slot, everything works fine, when is plugged in any of two slots in lower right – not working at all. At first I thought that device can not be recognized, but Ubuntu recognize it clearly, how do I set modem on?

When in first USB slot:

my.comp@Skynet:~$ lsusb
...
Bus 003 Device 006: ID 12d1:1c08 Huawei Technologies Co., Ltd.
...

When in second USB slot:

my.comp@Skynet:~$ lsusb
...
Bus 003 Device 007: ID 12d1:1c0b Huawei Technologies Co., Ltd. E173s
3G broadband stick (modem off)
...

I hope that this is not duplicate question, I’ve red (and tried) most of the solutions posted here, none worked

Answer

Here’s what I did based on this description:

  1. Plug the USB device

  2. Open a terminal, run lsusb:

    Bus 001 Device 008: ID 12d1:1c05 Huawei Technologies Co., Ltd. E173s 3G broadband stick (modem off)

  3. Create a file /etc/usb_modeswitch.d/12d1:1c05

  4. Paste this content:

    ########################################################
# Huawei E173s

DefaultVendor= 0x12d1
DefaultProduct= 0x1c0b

TargetVendor= 0x12d1
TargetProduct= 0x1c05

CheckSuccess=20

MessageEndpoint= 0x0f
MessageContent=
"55534243123456780000000000000011062000000100000000000000000000"

  5. Add corresponding lines to /lib/udev/rules.d/40-usb_modeswitch.rules with sudo gedit /lib/udev/rules.d/40-usb_modeswitch.rules:

    # Huawei E173s
ATTRS{idVendor}=="12d1", ATTRS{idProduct}=="1c05", RUN+="/usr/sbin/usb_modeswitch -c /etc/usb_modeswitch.d/12d1:1c05"

  6. gksudo gedit /etc/modules, and add this:

    # manual override for Huawei E173s to work
usbserial vendor=0x12d1 product=0x1c05

  7. Unplug and plug the USB device type lsusb. Now it should be
    modem on:

    Bus 001 Device 008: ID 12d1:1c05 Huawei Technologies Co., Ltd. E173s 3G broadband stick (modem on)

    Now you should be good to go and able to connect via the GUI:

    Ubuntu Gnome 14.04 Connect To Mobile Broadband

In case it’s still not working, refer to the further steps described here: http://metodiew.com/huawei-e173s-and-ubuntu/

Note:

Your device id may vary 0x1c0b or 0x1c05 (or even something else)

Attribution
Source : Link , Question Author : Ladislav Naďo , Answer Author : Community

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