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MacBook starts with fan sound but screen not working

Ok, here we go tl;dr

Last week i spill a 250-300 ml beer at my MacBook 2014 Mid Retina and i disconnect everything. Then leave him for about a week to dry and my screwdriver P5 to come. Yesterday i opened the macbook clean all of the parts and leave him for 3-4h to dry again. Then i get all the parts together and put him on MagSafe. And yesss, everything is ok, the laptop boots and start and everything is &&^&^$^ fine.

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But after 2-3 min i started to see that the macbook is a lot slower. I disconnect from MagSafe and he instant shutdown. So battery is dead... Then again i connect the MagSafe and start but the suddenly the Screen wont start. I here the chrome little sound from the fan and opened the bottom of the laptop and I see how the fan is working but no screen or image. I have done a SMC reset, nothing. Then I done PRAM reset and this is what I getting:

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The macbook again is working but i see only this. I try to disconnect SSD, Battery, Cables and everything but nothing..

Update (08/15/2017)

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This is from today. I cleared the all board like 3 times and I think last time the problem was that I changed and put too much thermal paste. So I remove all of it, let dry for 3-4 day. Then put only a dot of thermal paste and he starts.

There's only 2 problem. Like I said, battery is dead and need change and the MacBook run like 70% slower because of that. Other problem is that Enter key and Shift key below Enter key not working. I make right Command to be new Enter key and right Option to be new right Shift key for now. I'm ordering the battery and the keyboard today and hope next month all be like before.

Thanks!

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Sadly, you have some deep issues here ;-{

Beer can be nasty to clean up! Between the stickiness, corrosiveness and active bacteria within micro-brewed beer you need to do some deep cleaning.

First the logic board will need to be removed fully so it can be properly cleaned hopefully thats all it will need if you are lucky. You'll need distilled water with a drop or two of bleach added (not tap water!) As well as 85% or better isopropyl alcohol and a shallow pan & soft toothbrush to clean it and the other parts. Cleaning out all of the beer, and sterilizing the parts of the active beer cultures. You'll need some can'ed air to blow the parts and a warm window sill to lay the part out on to let them fully dry.

You appear to have damaged the display it self as well. The retina displays are not really repairable so you'll need a new display assembly.

Depending on where the beer spilled into you may have sticky keys in the keyboard and/or the keyboard/trackpad may not be working correctly. This is were the upper case assembly might be needed.

So after looking at this shopping list the question is: Are you up to salvaging your system and if the costs are higher than just bitting the bullet getting a new system?

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I did all the things you talking about before posting this. I cleaned all the parts with toothbrush and 70% alcohol (spirt), leave it for 3-4-5h to dry. In the parts there was no trace of beer anywhere before and after the clean. After the clean and dry i start the laptop and everything was OK. After 3-4 min i realise that the MacBook is slower and cut off the MagSafe and he just shut off instantly. So the battery is gone, but after the start with MagSafe, he starting with black screen or the monitor is just not starting. I here only the fan starts. Then I try with SMC and after that with PRAM reset and getting this on the second image.

Is there a way to try and see how part are broken and who working? Thanks again!

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It sounds like the beer was still present on the logic board. Sadly you needed to use distilled water first to dissolve the beer solids. Then use the isopropyl alcohol to wash it again.

The alcohol you used was grain (spirt) which works as a dryer of water but not a very good dissolver of water soluble solids like beer.

At this point I'm sure the logic board is damaged so its going to need some deep skills to diagnose what components are damaged this is beyond a simple DIY project.

Given the rest of the symptoms I think its best to give the poor baby the last rights salvage the SSD so you can recover the data on it and get a new system. Sorry ;-{

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