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Hi- My old but reliable, until now, MacBook Pro won’t turn on. I hope someone can help. Here are the symptoms: Magsafe adapter has no light, except if the computer has been unplugged with no battery for several minutes, the adapter flashes green one time when it’s plugged back in.When plugged in, the 3rd battery indicator light from the front is green. The rest are off.No other signs of life.I tried resetting the SMC a few times following online guides. I tried letting computer sit unplugged without battery. I tried different Magsafe adapter. I tried different battery, although one I’m unsure if works. I tried with no battery.This happened the day after replacing the battery and calibrating new one (from OWC). I called OWC who couldn’t help, said bad battery couldn’t cause other symptoms, was coincidence. I am returning battery for them to test though. Could it be bad DC-in board? I read about that part here, but it’s not clear what symptoms would indicate replacing it. I’d really appreciate any advice. Thanks!!
What does the onboard battery checker tell you?
Have you taken this computer apart?
Hi There The fault is a Motherboard issue and it will require to be Replaced if it don’t work please reply and I will look into it further . thanks
