Hi Richard, exchanging the keyboard yourself might be not a great thing. If it is not an apple computer, where you have to strip the whole computer, most keyboards are very simple to echange.
There are often some videos on youtube, which show, how to do it. On most, there are 1 - 3 screws to loosen, then (but not always), some clamps to press aside, and you can lift up the whole keyboard. On my Lenovo T520 (and I suppose most Lenovos are made like mine), you have to loosen 2 screws on the bottom, then push the whole keyboard into the mousepad direction, and then lift it up. Easy to do. If done, you can loosen the flat cable as usual and exchage the keyboard. It is just a hint, if you want to save money. The keyboards are all about 30 - 50 € (about 40 $) and the exchange by a commercial should not cost much. It is done within 10 minutes (maybe a few dollars more) Hope this helps! Best Hans
