The April 2014 update of Apple's 13" MacBook Air features refreshed dual-core i5 and i7 processors, plus slightly increased battery performance.

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Old water damage - slow trackpad/keyboard speed


I have a macbook air that sustained water damage along time ago - I have no idea what steps were taken by the family member in question, but they probably weren't the correct ones. I would say this was bordering on a year ago or so, and has since been gathering dust in a cupboard.

I've switched it on, performed an SMC reset, PRAM reset, re-install of the original OS.

I have taken the back cover off (and as was probably more than reasonable to assume) there does not seem to be any moisture or water under the chassis or anywhere else.

The laptop works fine - connects to wifi, usb ports work - everything seems fine. EXCEPT everything is just a bit slow, the cursor moves slower than it should with I use the trackpad, and it's the same when I type with it, and of course navigating through progammes and menus is a little slower than it should be

In addition the fan is running very loud

What could this be? Any idea what i can do for a fix?

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Checked thunderbolt ports and they work fine too. Anyone have any ideas, I'm a little stumped..


Kernal_Task is running at 290%. I'm guessing this is a RAM issue?


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1 Answer

Chosen Solution

If you look at the track-pad board (See: do you notice any corrosion on the cables or connectors? I just completed a repair on this model and found slight corrosion here resulted in the shift-key acting like it was being pressed. Replaced the Upper-Case, Track-pad, and Upper-Case Cable and it works like new. Since all your keyboard data runs through the track-pad, it's a good place to start.

Good luck!

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