The only thing that you can do is replace the whole keyboard. It should have a FRU (Filed Replaceable Unit) part number on it somewhere. In my day to get parts you called the IBM country number and asked for parts Sales.
T
April 2007
I can answer this question...
where can I get letters for my IBM Thinkpad keyboard?
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix notebooks/laptop pcs.