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!!