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You are not logged in. [Log In] AppleCentral » Forums » Mac » Hardware » Dead MBA keyboard & trackpad after bootcamp erase
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#584256 - 10/27/12 05:21 AM Dead MBA keyboard & trackpad after bootcamp erase
jase7777 Offline


Registered: 10/27/12
Posts: 4
Hi all,

first-timer here hoping for help from the hive-mind!


I have a late 2010 MBA (3,1) running Mountain Lion

SMC 1.67f9
Boot ROM (EFI) MBA31.0061.B07

I bought it from a friend with Bootcamp/Windows installed and everything was fine.

Then I decided to be clever and free up some space by erasing the bootcamp partition via Disk Utility.

As soon as I did that, the built in keyboard and trackpad haven't worked. No light on Caps lock button. Power button is the only one that works. USBs are OK. No other problems.

I'm thinking the EFI has been slightly corrupted or a boot setting is still looking for Windows drivers for those two IO devices.


What I've tried:

Took it to Apple Genius Bar - they replaced the trackpad controller board (I told them that wouldn't fix it). No change.

Reset SMC, PRAM multiple times. No change

Upgraded to Mountain Lion from Snow Leopard. No change

Installed rEFIt - tried some utils. No change

Software update doesn't find any required updates.

Tried reinstalling recommended EFI (2.3, I think) - error message is (This software is not supported on your device)

Tried reinstalling SMC - same as above


Help!! - I'm at my wit's end. I'm convinced that if I can flash/reload the correct EFI, it will fix the problem. Is there a terminal command that'll do it? I'm moderately OK using the Terminal.


Thanks for reading this.

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#584258 - 10/27/12 06:33 AM Re: Dead MBA keyboard & trackpad after bootcamp erase [Re: jase7777]
NucleusG4 Offline
Master•Blaster

Registered: 04/20/02
Posts: 12486
Loc: Miami, Fl.
You say you upgraded the OS. How about a complete wipe and install?

Is it still under warranty?
_________________________
http://davidbearphotography.com/



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#584259 - 10/27/12 07:00 AM Re: Dead MBA keyboard & trackpad after bootcamp erase [Re: NucleusG4]
jase7777 Offline


Registered: 10/27/12
Posts: 4
No - not under warranty, sadly.

I must say though, the Apple Store was very reasonable in not charging me the $109 for the trackpad controller board and labour. Of course, they couldn't fix the issue...

I'm trying a full wipe of main partition and recovery re-install now (it's installing to Lion for some reason). I'll be sure to update this thread either way.

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#584262 - 10/27/12 09:34 AM Re: Dead MBA keyboard & trackpad after bootcamp erase [Re: jase7777]
jase7777 Offline


Registered: 10/27/12
Posts: 4
No change with the full HD wipe and re-install. Sob.

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#584266 - 10/27/12 11:55 AM Re: Dead MBA keyboard & trackpad after bootcamp erase [Re: jase7777]
NucleusG4 Offline
Master•Blaster

Registered: 04/20/02
Posts: 12486
Loc: Miami, Fl.
You said you wiped main partition. Is there more than 1?
If so.. wipe the whole thing and reinstall from disk.

I'm assuming you are able to use an alternate USB kb?
_________________________
http://davidbearphotography.com/



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#584269 - 10/27/12 12:09 PM Re: Dead MBA keyboard & trackpad after bootcamp erase [Re: NucleusG4]
jase7777 Offline


Registered: 10/27/12
Posts: 4
No - wiped it all and reinstalled. Yes - an old USB Apple KB and mouse are working fine.

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