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Released June 2009 / 2.66, 2.8, or 3.06 GHz Core 2 Duo Processor

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Trackpad works for a short time then start to move erratically


I’ve just done a fresh install to El Capitan with a brand new battery on my MacBook Pro 15” 2009.

The issue i’m having is that the track pad works fine for a while and then after 3-4 minutes it starts to behave erratically making it impossible to select anything.

The only thing that fixes it again for a short time is by hitting it fairly hard, after that it goes back to it weird twitching.

I think i’ve tried pretty much everything….

  • Fresh install, happen with both Snow Leopard and El Capitan.

* installed New battery, old one wasn’t bulging

* reset PRAM and SMC (PRAM i got the double chime and SMC the power connector changed colour

* tried with and without the power lead same, same problem

* tried with nothing else is plugged into the computer

* clean it with alcohol and scraped around the edges with a blade

I’m certain it must be a hardware issue as hitting it fixes the problem.

Any ideas welcomed


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Time to replace the trackpad! MacBook Pro 15" Unibody (Mid 2009-Mid 2012) Trackpad and here’s the guide to follow MacBook Pro 15" Unibody Late 2011 Trackpad Replacement

Imagem de MacBook Pro 15" Unibody (Mid 2009-Mid 2012) Trackpad


MacBook Pro 15" Unibody (Mid 2009-Mid 2012) Trackpad


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The site is called ifixit, not ibuy a new one.

Can you open them up and clean?


Just like a worn-out tire you can't do anything to them either ;-}

The sensor plate within the trackpad has become worn or damaged. You need a new one sorry ;-{


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drog1998 será eternamente grato(a).
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