one end of space bar not working
left side of space bar does not work--right side ok.
how to remove space bar and repair.
I don't know how this exact model is, but I can give some general advice. Most keys can be removed from the keyboard by gently prying them straight up. This is done by prying evenly from both sides using what iFixit calls a metal spudger (a non-pointy knife of sorts).
After the key pops off the mounting clips, be very careful, since there may be some small parts (such as a spring) that might pop out and get lost. This isn't too common, though. Also, be gentle, since some plastic bits can be damaged if you try to force them out by twisting.
A spacebar typically contains a "stabilizer wire" that goes from end to end, and its purpose is to pull one side of the key down as you push on the other side, making the whole bar go down evenly.
If your spacebar is wobbly, then probably this wire has either slipped out from its hold-down brackets, or it's become detached from its mounting clips.
You'll need to make sure the wire is correctly placed in 4 different places: the left & right side of the underside of the spacebar itself, and the left & right side of the area under the spacebar. In two of those places, the wire will clip in securely. In the other two places, the wire will slide under some brackets.
So first make sure the wire is clipped in where it is supposed to go, and then slowly put the spacebar back into place and make sure the wire engages the brackets, and finally push the spacebar straight down until it clicks into place (typically onto the key switch itself).
Actually, I'm peeking under my laptop's spacebar, and I can see two scissor-jack mechanisms under it in addition to the stabilizer wire. The scissor-jack is what is under every laptop key, and it is what the key top actually clicks on to. The scissor-jack is really a stabilizer mechanism in itself: it lets you press down on any corner of a key, and the scissor spreads that force to pull down the other 3 corners.
To add to cityzen's, if you see some of dust or gunk in there from food, finger grease, etc. give it a few shot of canned air. And, while powered down clean up any sticky stuff with a q-tip and some rubbing alcohol.
thank you! you just saved my keyboard with your article :D
Note that the spacebar has four metal brackets/bars. The inner two can stay in the key itself. But the ends of the outer two must hook underneath four little clasps that are on the base of the keyboard. If not, the far ends won't work (underneath the C and M keys).
So if you see all four metal brackets when you pull off the spacebar, gently take off the outer two and hook them into the clasps on the computer itself. Then line everything up and snap it together.
This was the info I was searching for but alas to late:
I had ruined the latches. You have to be careful check out step 2 as it matters what is “up” and what is “down”. On the “down” side there are a couple of notches that need to fall into place.