Macbook Pro Mid 2010 13" with dim green magsafe LED light & No power

[mkey323]

Hello,

I am in need of some help, I've searched on google and on the forums but have yet to find the answer to fixing my macbook pro's issue.

13" Mid 2010 MBP

Currently the issue is my Pro will not power ON, when connecting the adapter the magsafe LED light is very dim/faint green and after a few minutes it has a really quick dim orange/green flickering.

I've tried removing the battery/connector then powering it ON with the battery OFF, Also tried removing the battery holding down the power button for 30secs reconnecting battery and charger then trying to power ON, SMC reset, tried another known working good adapter, replaced the Magsafe board, reseated the ram, disconnected all connectors except screen, fan, keyboard, also tried disconnecting keyboard and trackpad and shorting the 2pads to see if it might work......but still no life

I even buzzed out the old magsafe board and all the pins buzzed out so i think the original magsafe board was still working. All i am getting is a very dim green light on the magsafe charger. Im hoping that since its still showing a dim green light there is still some kind of life. No water/liquid damage.

Please help me out

Thank you

 

[guineaphinea]

I've had this happen on my Mid 2012 MBP before. It turns out that over time the pins had become dirty and a quick clean with a dry cloth (mine weren't excessively dirty) fixed the problem!

If cleaning the pins doesn't work, try pushing the pins in on the actual adapter plug as they could've gotten stuck. Also, if these solutions don't work, try to borrow a friend's power adapter.

EDIT: Just saw that you've already tried another good adapter... Just make sure that BOTH the plug and the port are clean!

 

[mkey323]

Thanks for the reply but the MagSafe was replaced with a known working MagSafe and the charger/head/port are all clean and have been tested on a working system.

I'm stuck and not sure what else I can try/troubleshoot. Need more advise/help

Thank you

EDIT:
I found this picture that shows the outputs on the magsafe....So with the replacement magsafe that's currently installed in the MBP and while i had the charger hooked up to it, I took my DMM and looked at those points and the DC+ im getting 16.8V which i believe is accurate and is supplying power to the board....does the sound right? If so what else can I try/test to fix this thing?

 

[mkey323]

Question:

Since my battery is dead and theres no power going into the MBP from the DC-IN MagSafe is it possible to use the battery from a
Unibody White MacBook 2010 A1342?

The connectors look identical the shape is similar, I know it's not the exact size and it won't physically fit into the MBP but will there be any harm to it if I connect it and try to power it ON? I just want to see if the board can still turn ON?

My main concern Is the pinout from the White unibody battery the same as the pinout for the 2010 13" MBP

Battery Model numbers below
Mackbook White Unibody 2010:
A1331 10.95V 63.5WH

MacBook Pro 13" 2010:
A1322 10.95V 63.5WH

 

[KUguardgrl13]

Have you tried using a different MagSafe charger? My charger for my mid-2009 was showing very similar things, and it turned out that it was going bad. I got a new one, and it works just fine.

 

[mkey323]

Yes, I've tried 2 known good working apple adapters 85W still the same.

 

[mkey323]

Does anyone have an answer for post #4 reguarding the battery's?

Thank you

 

[mkey323]

Does anyone have an answer for post #4 reguarding the battery's?

Thank you

Bump to see if anyone has a answer.

Thank you

 

[sebstewart]

Hello-

I am experiencing literally the same problem with the same checks and same torubleshooting steps taken.

Did you ever find a solution to this?

 

[wallyrabbit]

What worked for me after all that was to unplug the battery from the motherboard, plug in the charger (should be green now), unplug the charger, plug the battery cable back into the motherboard

 

[Nizri295]

What worked for me after all that was to unplug the battery from the motherboard, plug in the charger (should be green now), unplug the charger, plug the battery cable back into the motherboard

Same solution worked for my 2012 MacBook Pro 13" -
1. Disconnect MacBook from charger.
2. Unplug the battery from motherboard.
3. Connect MacBook to charger.
-green light appears correctly-
4. Disconnect charger.
5. Plug in the battery to MacBook motherboard.
6. Connect charger and enjoy.