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USB 3G Modem detected as cdrom, How to fix, Ubuntu 12.04

on Linux

I wanted to put this post up few days ago but couldn’t get time to write. After installing Ubuntu 12.04 with UEFI switched off, I switched GPU off. I was expecting WiFi problems but I didn’t expect any problems with USB 3G modem. I plugged it in. It showed green and blue light which meant it was intitialized but I couldn’t access it. I looked up on the net and got various solutions but none of them worked. My HUAWEI 3G USB modem was getting detected as cdrom. Weird!

I want to keep this post short. The soultion is even shorted.

Get your modem’s vendor and product id.

$ lsusb

Copy down the vendor and prodcut id.

output of lsusb

Once you get your vendor and product id, you need to add that in the driver file.

$ sudo su
$ echo 12d1 1436 > /sys/bus/usb-serial/drivers/option1/new_id

Restart the network manager.

$ sudo service network-manager restart

Or even reboot will work. Now replug your USB modem and wait for 20-30 seconds for it to intialize.

If still you’re having some trouble, refer this.

P.S. Conducting a Python hackathon.

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