Model A1502 / 2.4, 2.6, or 2.8 GHz dual-core Intel processor / Released October 2013

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Liquid Damag: Trackpad or Logic board? (A1502)

Some water was spilled on the trackpad and keyboard and following problems persist since then:

- Fan running all the time, even when laptop isn't hot

- Its %#*@ slow now

- The trackpad stops working sometimes, but then closing the display flap and opening it again fixes it. Perhaps it goes into some sort of sleep mode and comes back.

- Everything else works just fine

My earlier guess: Some thermal sensor has probably gone bad and that causes the OS to think that its hot enough to be cooled down. And so it starts the fan and slows down all CPUs, so they don't generate more heat.

I took it to some Apple authorized service center in India and they (after running diagnostics) are telling that the logic board needs a replacement (~ $650). But I am not sure, as at multiple places on net, people asked to replace the trackpad (which comes in the body itself)..

Any help would be really useful..



Answered! View the answer I have this problem too

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Thanks Dan and Holger. Actually this is a company sponsored laptop and I don't want to do things with it myself, that I would surely have done on my machine :)

And so I may go ahead with a replacement of mother board, if nothing else works out.

Though, I think that your tricks can work for sure, they look really good.

Thanks a lot !!




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Sadly, there is no magic fix here ;-{

I think you'll need to open the system up fully to inspect the parts and clean things up. Hopefully that with solve your problem Vs replacing parts.

Follow the IFIXIT guide here: MacBook Pro 13" Retina Display Late 2013 Logic Board Replacement own how to get the logic board out. Don't focus on the logic board alone here make sure the upper case is clean as well.

I would use distilled water not tap water! To clean things, using a cotton swab wipe down the areas that appear corroded. Then go over them again this time with high grade isopropyl alcohol (85% or better). If the damage is too severe you'll likely need to replace things.

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Hello Viresh,

Water damage can be a beast if not treated soon and well.

Dan gave good advice. Use distilled water only and a soft brittle tooth brush to clean any corrosion off the board and any other components. Follow that with an Alcohol cleaning and a thorough drying of all the components. When you are certain all is completely dry you can reassemble and test.

I've done a lot of water damage recovery and found that process to be most effective.

Good luck

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Viresh Kumar will be eternally grateful.
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