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Replace ACER Aspire ms2361 Keyboard with or without frame?

hypercube
hypercube asked
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Last Modified: 2015-03-10
I need to replace the keyboard on an ACER Aspire ms2361 laptop.

The keyboard consists of 3 parts:
- the keyboard core with keys and cable
- the keyboard frame that outlines the keys and provides the interstices between the keys. This piece goes on top of the keyboard core.
- a metallized plastic sheet with two threaded socket-type mounts that attaches to the keyboard back/bottom (with sticky material) and then to the computer from the bottom with screws to hold the keyboard assembly in the computer.

There are many keyboards found for this computer "without the frame".  I bought one.

With some "reasonable force" I was able to remove the old keyboard core from the frame as well as the metallized backing sheet.  Replacing the backing sheet isn't "neat" but it seems adequate as the sticky material remains.  
And, I was able to "reassemble" the keyboard and the frame but not "good enough" in my opinion.
It appears that the keyboard was attached to the frame with plastic posts on the frame that fit through holes in the keyboard metal backing.  Some posts snapped into the keyboard and some didn't.  
(It appears that the keyboard was originally attached to the frame by thermoplastic flow of the post ends in some sort of press - much like expanding a rivet).  Maybe there's a tool for this?

Anyway, while the attachment so far seems just adequate, the faces of the keys don't protrude quite far enough above the interstices on the frame - so it seems a bit hokey.

I'm wondering if there's a way to better make the attachment to the plastic posts?
- trim them (so they'll fit through the holes) and re-flow them with something like a soldering iron?
- give up and purchase a keyboard with the frame integral to it?

If you've done this then you probably know the answer.
What I can't figure out is why there are so many of the keyboard cores for sale alone?
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