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Hello, I am currently working on a 2010 MacBook Pro 13" on which water has been spilled. I got the motherboard out and cleaned it with alcohol to remove oxydation. Then I replugged everything and tried to start the machine. When I press the power button, nothing happen. I get the green light on power adapter when I plug it. I tried to power on the machine with the battery plugged and it isn’t working either. Even when the battery is plugged the indicator light doesn’t go from green to orange to say it is charging. I tested every PP3V42_G3H_REG component on the motherboard and the voltage is fine. I tried to look if there was anything blown up on the motherboard and every component seems fine. I don’t know what to do now, anyone got an idea?
Which model is it? 2011+ will boot with the battery disconnected as soon as the charger is connected (make sure to disconnect the keyboard too). If it is not, there is an issue with the board. If it is pre 2011, have you tested it with a new keyboard? This is likely the issue. Beyond this, you need to measure all the power aliases on the MacBook board, something will be missing or low. Don’t just focus on PP3V42_G3H, many things will prevent it from booting (check G3H rails, S5 rails, S3 rails, S0 rails, etc)
