Ubuntu

mobile broadband option has disappeared unable to use internet dongle

Asked by drskartik

I am using Ubuntu 13.10 on Acer Aspire one725 netbook.
I tried out Airtel 4g internet dongle which worked beutifully out of the box, being detected by the computer as mobile broadband.
On subsequent attempts, i found that the mobile broadband option itself has disappeared from the network connections menu though the connection is still saved as Airtel default under edit connections tab.
The modem is Huwaei E3272.
Thanks in advance.

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drskartik
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actionparsnip (andrew-woodhead666) said : 		#1

What is the output of:

lsb_release -a; uname -a; lsusb

Thanks

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drskartik (drskartik) said : 		#2

The output:
jahnavi@kartik-acer-aspire:~$ lsusb; lsb_release -a; uname -a
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 002: ID 064e:e330 Suyin Corp.
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 002: ID 0489:e04e Foxconn / Hon Hai
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 002: ID 12d1:157c Huawei Technologies Co., Ltd.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 007 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 006 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 13.10
Release: 13.10
Codename: saucy
Linux kartik-acer-aspire 3.11.0-20-generic #34-Ubuntu SMP Tue Apr 1 20:40:25 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

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actionparsnip (andrew-woodhead666) said : 		#3

You can now use

12d1:157c

To find guides. This is the ID of the device.

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drskartik (drskartik) said : 		#4

Sorry got stuck here. How do I use the id to find guides?
Dont know how to proceed further, I am not getting mobile broadband in the network menu.

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actionparsnip (andrew-woodhead666) said : 		#5

https://www.google.co.uk/search?q=12d1%3A157c+ubuntu&oq=12d1%3A157c+ubuntu&aqs=chrome..69i57&client=chrome-mobile&sourceid=chrome-mobile&espv=1&ie=UTF-8

Never used google?

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drskartik (drskartik) said : 		#6

Thanks Andrew,
Finally solved it.
I did a fresh install of ubuntu 14.04 in my netbook.
and updated the usb-modeswitch-data ( I had an old image which I had downloaded when i had access to net)
Yes I used google to find out solutions but was not successful.
One should also know the exact thing to search on google!
regards
Kartik