Question about Dell Latitude C640 P4 Mobile Notebook

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Keyboard problem

C640 dell laptop 2,w,s,x, keys don't work i tried a keyboard from a working c610 dell and 1,q,a,z, don't work plus the keys i frist listed my external keyboard woks fine please help thanks.

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  • 188 Answers

You just need a new keyboard - those are easy to come by check ebay.com and search for C640 keyboard. New ones should only be about $30-$40.

To remove the keyboard you just remove all the screws on the bottom of the laptop that are marked with the letter "K" then carefully pop the keyboard up.

Let us know if you need further help!

Posted on Jan 12, 2008

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Posted on Jan 02, 2017

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I suggest you call Tech Support at Dell...

Several years ago, I worked on many Dell CPx 500 models in my work place. There was an issue that always involved a series of 4 or 5 keys (they were always the same keys) that would quit working and we had attempted to purchase new keyboards to fix the issue. It turned out, the real solution was to replace the 'motherboard' of the Latitude notebook!

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