waterdamage MacBook a1342 no jump start. help!

hey guys so ive followed all the steps online showing how to test and repair water damage a1342 macbook. i ahve searched everywhere and so far everyones macbooks has been fixed by jumpstarting it. (except mine haha)

the board its self looks flawless. i do not see any corrosion or damaged connectors.

i have completely removed and cleaned logic board and ram. no luck. i also replaced the ram from my MBP and still no response.

i was going to do a system management controller reset but unfortunately it will not power on to do so.

i have tested my power supply and it is working fine. charged my MBP no problem.

my next step was to try and jump start the unit. when i go to do this the fan fires up for a quick spin then shuts down before the laptop can fire. no harddrive or mac sounds. i have tried this with the laptop plugged in and running on just battery. i get the same fan spin for a second then fail. if i hold my bridged connection in the exact right spot the fan will continually run in 1 second boot intervals but not fire and continue running.

my next question would be what should i test next? i read about people testing components with a multimeter. i am not familiar on how to do this and would apprecaite any assistance you can give.

i really dont want to have to go out any purchase expensive parts before i have tested and exhausted all other options. i would really appreciate any help i can get on this issue thanks.

Answered! View the answer I have this problem too

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You have, or could be in the process of burning out the logic board. Jump starting a computer is not like jump starting a car. That you found the pins, but it doesn't work means you've missed finding some damage. In fact each time you force start you could do more damage.

There are some people here that can give you some answers about testing certain components. Don't know if that is cost effective... the simple DIY fix would be to replace the logic board.

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Theresthst guy somwhere in NYC i think his name is rossmann, he has got a channel on youtube doing smc repair on ligic boards. If you live close, try to get hild if him. Otherwise ithink it might be some sort of power rail been damaged by short...

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gfunk will be eternally grateful.
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