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Some of the keys of my lenovo G450 laptop are not working.what to do now?

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  • Lenovo Master
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Hello
What may have happened is that when you grabbed it, the pressure could have broken a trace (printed wire) on the printed circuit board in the keyboard. Usually the way a keyboard works is by making a matrix of switches where, for example, "a", "z", "q", "1", "`", and "tab" could be on one column and "z", "x", "c", etc are on one row. Pushing the "z" key makes a connection between the the corresponding row and column, and the keyboard's microcontroller interprets that as a keypress on the "z" key. If you've broken the connection to the "qaz" column, the microcontroller will never know that you've pressed one of those keys. Replacing the keyboard will give you a new microcontroller and circuit board, so you should be good to go!
Do rate the solution if helps
Good Luck

Posted on Dec 30, 2010

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  • Master
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Hi Reetu,

Is it under warranty? I would suggest you to get it serviced by your hardware vendor.

Posted on Dec 30, 2010

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