[ubuntu] Cant connect to internet via huawei e303c modem in ubunti 12.10

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http://ubuntuforums.org – Recently I bought a huawei e303c modem . It works perfectly in windows 7. While using in Ubuntu it is not detected or recognised even after installing drivers successfully. I followed the instructions from the guide (cant attach). But still no recognition.. Also the huawei mobile is coming under wired connection and is faded (not highlighted). Wat should i do to fix this.. ??? please help (Hardware)