some keys are not working

Hi,

Try plugging in a USB keyboard and use that until the laptop's keyboard has been replaced.

You can cause more problems than you will solve when trying to repair a keyboard. It is better to replace it.

Here is a link to the service manual for your laptop.

http://h20628.www2.hp.com/km-ext/kmcsdir...

Scroll from p.63 onwards to view the necessary pre-requisites and then the procedure on how to remove the keyboard. Installing the new keyboard is just a reversal of the procedure.

Also on p.63 you will find the part number for the keyboard. (this number should also be printed on the underside of your laptop's keyboard). Once you have determined the correct part number (as the keyboards are country specific), search online using just the part number only to get suppliers of the part. Select the one that suits you best

Here is an image showing an example of what I mean. I have used the part number of a keyboard for the USA.

(Click on image to enlarge it for better viewing).

Hopefully this is of some help.