Solved macbook pro has B key problem - jumps backwards

November 10, 2016 at 05:20:58
Specs: Macintosh
when I type a word using the letter b - no matter in the beginning or the middle of the word- the cursor jumps back several spaces - in email it jumps back to the subject of the email for instance -

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#1
November 10, 2016 at 07:36:45
✔ Best Answer
Sounds like a defective keyboard, they can be replaced, if its unibody MacBook which I assume it is, it requires the motherboard and other components to be removed to access the keyboard. The keyboard will have a membrane over which is for the backlight. You can find cheap replacement keyboards on ebay, i think the last one i bought was around £20 including shipping and worked great. Its an involved job but pretty easy to do as long as you place everything in a logical order.

What i tend to do is

1) remove each component and place it furthest away from me
2) put all the screws that came off with that component beside it so i don't mix them up
3) each time something comes out i put it closer to myself

at the end when i have to put the machine back together i start with the components closest to me and work towards the ones furthest away. This way you will get everything in, in the correct order and also ensure all screws are in.

Have a look on youtube too for some videos.


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#2
November 10, 2016 at 09:10:18
Thank you so much for this very informative answer. I appreciate all the time you took to help me. However, I think I will take it to get it fixed, because I wouldn't know a motherboard if it were presented to me on a plate. But again, I appreciate the help. At least I know what the problem is.

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#3
November 10, 2016 at 09:47:39
Before I take the screws out of the back/base of MacBook, I first draw a rough diagram/plan of the base - as it looks with all screws installed. Then when I remove a screw I stick it (scotcthape/selloptape it) to the spot on the diagram/plan corresponding to where that screw came from.

I do his because there three types of screws used on the base... Some of them look almost identical - but aren't. Some of them will intecrhange (more or less) some won't. Trying the wrong screw in the wrong hole can risk damaging the threads on either the screw r in the hole.

The same may apply to other brands of laptop as well;e.g. Acer use two types of near identical screw on some of their laptop bases...

Doing the above also means you don't lose any of the screws; and they "may" not be easily replaced from Apple-land or wherever?


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#4
November 10, 2016 at 09:51:55
Okay Folks - Thank you so much for the input. I will never attempt your suggestions though - I have no idea what I would be doing. I will take it to a repair shop. I thought maybe it was something really simple, or something I inadvertently did myself - like hitting the wrong button.

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#5
November 10, 2016 at 09:52:36
We can stop now - I see it is too complicated for me. Thanks to all, I appreciate it.

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#6
November 10, 2016 at 11:27:27
That's OK. Often pholks here will post odd snippets as a post closes; as those snippets/suggestions may be of use to others who may come across the thread/post later via whatever means..

Also you don't need to shout...

Good luck with the repair...


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#7
November 10, 2016 at 12:13:54
I removed the capital letters. I was trying to draw attention so as to prevent someone for using their time to help me, when I already knew that I couldn't do this. I wasn't really shouting. I sincerely feel very kindly to all of you who are trying to help me, and I appreciate it greatly. Thanks again.

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