Why is my MacBook Pro not booting?

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MacBook Pro 13" Unibody Mid 2009

Mid 2009 Model A1278 / 2.26 or 2.53 GHz Core 2 Duo processor EMC 2326

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ryan wilson @trapwafflefx

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Postado: 4 de out de 2019

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Why is my MacBook Pro not booting?

Why won’t my MacBook Pro (mid 2009) 13” boot?

A little back ground on the Mac. I was using it less than 12 hours ago before I went to bed, and everything ran like normal. I shut it down and sat it on the table. I ordered a SSD and it came in the mail the next day and now I can’t get the MacBook to boot. So I pulled the back plate off and noticed there was a liquid residue coming from under the battery. I’m in the process of cleaning out the liquid. Quantity of the liquid is less than a drop or two just noticed it when I was taking off the back plate on my fingers.

When I press the power button it started by making a spinning noise coming from the hard drive location, but no chime. Black screen. The fan would spin up and idle. Front indicator light would flash as computer turned on and then go off.

The battery indicator just flashes. The computer won’t boot nor will it charge. ( no light on the Mac charger)

charger will charge other 2009 Mac book.

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Unplug the battery keep it on the charger

put the backplate on it don’t screw it down yet

Boom it’s on the battery may have shorted!

Check connections

But when you have your old hard drive in make sure you format the hard drive to Mac OS Extended (Journaled )

and install the os on it but it should be a white screen

hold the option key on boot to select the bootable hard drive

4 de out de 2019 por Mark D Schlossman

@consistent read the complete question with the subsequent comments......

4 de out de 2019 por oldturkey03

@oldturkey03 It doesn't seem he really cares about questions..mostly words casually assembled on most answers :/

4 de out de 2019 por arbaman

@arbaman Yeah I thought about that too but you know how I am. Always trying to see the good in people and maybe it's a language thing or an age issue :-) we'll just have to see how this pans out :->

4 de out de 2019 por oldturkey03

@oldturkey03 I know..I know..don't take me too seriously, it's just that I've been raised in a lion's cage ;)

4 de out de 2019 por arbaman

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arbaman @arbaman

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Postado: 4 de out de 2019

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I've never seen liquids coming out from lithium batteries. I believe first step is to take apart as much as you can of the Mac and try to determine the extent of damage caused by liquid, where it reached and where it does come from. Give a check at the heatsink you will find on the flip side too. Stop trying to turn it on whichever way, until you have completed the inspection and taken care of the liquid. You may find help from these guides for disassembly and liquid damage care:

MacBook Pro 13" Unibody Mid 2009

MacBook water damage - The definitive guide

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I did do an inspection and i found that the back of the charging port was burnt. i assume i can just replace the charging port like an iphone and it shouldnt effect the motherboard or any other components?

I also still cant seem to find the source of the liquid. its in random spots around the frame. no sign of water damage, but i striped the whole thing down to the frame and cleaned every bit i could find.

4 de out de 2019 por ryan wilson

Likely the liquid within the heat transfer tube to the heat sink leaked out.

@trapwafflefx - Do you sit the system in a case on its edge?

4 de out de 2019 por Dan

Most of the time we sit this mac flat on a table with my 2011 macbook pro. The only way i could see it sitting on its side is if i carried it into another room but then it goes back flat again. i guess it could of gotten jostled that way.

4 de out de 2019 por ryan wilson

@trapwafflefx One way or the other you'll have to remove the board to replace the DC-in small board. While you're at it, check thoroughly all around with a good light source for any anomalies and if things go well give it a nice blow from dust and replace thermal paste too. Keep fingers crossed it's just the DC-in board!

4 de out de 2019 por arbaman

There is one spot on the top of the board that is questionable. It doesn't look burnt, but it is discolored. I ordered a DC-in board.

Will post soon on update.

4 de out de 2019 por ryan wilson

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Unplug the battery keep it on the charger

put the backplate on it don’t screw it down yet

Boom it’s on the battery may have shorted!

Check connections

But when you have your old hard drive in make sure you format the hard drive to Mac OS Extended (Journaled )

and install the os on it but it should be a white screen

hold the option key on boot to select the bootable hard drive — Mark D Schlossman
@consistent read the complete question with the subsequent comments...... — oldturkey03
@oldturkey03 It doesn't seem he really cares about questions..mostly words casually assembled on most answers :/ — arbaman
@arbaman Yeah I thought about that too but you know how I am. Always trying to see the good in people and maybe it's a language thing or an age issue :-) we'll just have to see how this pans out :-> — oldturkey03
@oldturkey03 I know..I know..don't take me too seriously, it's just that I've been raised in a lion's cage ;) — arbaman
I did do an inspection and i found that the back of the charging port was burnt. i assume i can just replace the charging port like an iphone and it shouldnt effect the motherboard or any other components?

I also still cant seem to find the source of the liquid. its in random spots around the frame. no sign of water damage, but i striped the whole thing down to the frame and cleaned every bit i could find. — ryan wilson
Likely the liquid within the heat transfer tube to the heat sink leaked out.

@trapwafflefx - Do you sit the system in a case on its edge? — Dan
Most of the time we sit this mac flat on a table with my 2011 macbook pro. The only way i could see it sitting on its side is if i carried it into another room but then it goes back flat again. i guess it could of gotten jostled that way. — ryan wilson
@trapwafflefx One way or the other you'll have to remove the board to replace the DC-in small board. While you're at it, check thoroughly all around with a good light source for any anomalies and if things go well give it a nice blow from dust and replace thermal paste too. Keep fingers crossed it's just the DC-in board! — arbaman
There is one spot on the top of the board that is questionable. It doesn't look burnt, but it is discolored. I ordered a DC-in board.

Will post soon on update. — ryan wilson

MacBook Pro 13" Unibody Mid 2009

Why is my MacBook Pro not booting?

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