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Released April 2010 / 2.4, 2.53 GHz Core i5 or 2.66 GHz Core i7 Processors

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resistors missing help! 2010 i7

So this is the story:

I have some keyboard key’s that aren’t working. I changed the keyboard but still the same buttons are nlt working. I can see on the motherboard that i miss some components.

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whats the solution?

Update (09/20/2020)

Yes it’s ‘820 2850 A’ :D @oldturkey03

Update (09/20/2020)

Good question! I took a picture. The red ones

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1个回答

@melkhalfi

To clarify, these components are not populated in production systems as you can see here:

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So this is not your issue. Can you fill us in on what’s going on which keys are not working?

Update (09/20/2020)

The keys you marked share three column lines:

  • The first being the 9, O, L as well as the colon key
  • The second being the 0, P, M and equals key
  • And the third is the accent, return & arrow keys.

This is common problem when there was a liquid spill which has damaged the keyboard switch lines under the keyboard keys.

Basically, you have a grid of X lines and Y lines and the key shorts across these two lines to create a circuit the computer understands as a given key symbol.

Sadly, there is little you can do to fix this other than replace the keyboard unit MacBook Pro 15" Unibody (Mid 2009-Mid 2012) Keyboard its a bit of a job as you need to strip down the uppercase to get to it, here’s a great Youtube guide: 2009 Macbook Pro 15" A1286 Keyboard Replacement which is the same process for your system.

MacBook Pro 15" Unibody (Mid 2009-Mid 2012) Keyboard图片

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

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Oh oke, so I have some keys that are not working. I replaced the keyboard but still they are not working. It does the job with an external keyboard. :(

完成的

What are the letters/numbers or function that don't work please.

完成的

I have updated my question. Thanks for helping :)

完成的

Thank you for the answers.

完成的

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