820-2936 very slow

ielectron

Member
Macbook did not power on, i see very slight water damaged, actually that could be only just normal humidity and corrosion, not direct water damage

-did not turn on at all, there was no green light,
-3.42V is ok all over the board
-i reflowed SMC, now it works and boots but very slow
-holding cmd+D the test passed many time, the xtended test
-same with different HDD or hdd cable

will i replce the SMC ?
 

2informaticos

Administrator
Staff member
If started to work after reflow SMC, should be better to reball it.

But I recommend to run ASD first.
Also try known good trackpad board/flex.
 

brunomotter

Member
Measure R5301, R5302, R5311 and R5312 and post back results here. Each one should measure 100K. In a lot of cases there's corrosion near those resistors on these machines and the cause terrible lags on the computer.
 
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