My MacBook wont power on at all.
I replaced a broken hard drive and now the computer wont turn on at all. When I plug in the magsafe a green light comes on and the battery is fully charged but when I hit the power button nothing happens. Please help.
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so i can turn the computer on by shorting out the pins. so i replaced the upper case cable and still the power button wont work. is there anything else i could check or change or do i have to replace the upper case now?
by ogbta