an issue with a failed battery dragging the power too low to start - open and repair.an issue with the logic board - open and repair.an issue with the SMC - the only way to diagnose this is to try one time to reset the SMC - if after one reset, it doesn’t power on, open and repair.an issue with the power button on the top case assembly - the only way to diagnose this is for the battery to run down completely and then connect to power with auto power on enabled and/or open the case and begin repair level triage / fault isolation / part replacement or repair ( hereafter called open and repair).The problem you are having is that your Mac won't turn on. Green means 'charged' and amber means 'charging.' Seeing a green light on your MagSafe means it's getting the signal that they battery is fully charged there's no other diagnostic info related to this light. The problem is unrelated to the status of your MagSafe light. (I don't know if any of this is relevant or should be considered relevant) No light if I leave it unplugged for a bit and mess around with trying to turn it on unplugged for a while.Green light if I remove and then reattach the cable in short amounts of time ( approximately 2 minutes or so).Green light if I switch cables with different mac in a short amount of time.To add a further detail, I can get either

There's no fan noise and no probable cause for damage. Leaving it plugged in for a while, etc.doing an SMC reset (doesn't respond in any visible way to Shift Control Option Power).pressing various keys and moving mouse.There doesn't seem to be a problem with the adapter itself based on that.Īfter moving where the adapter is plugged in, I am getting a green light from the Magsafe2 in my MBA, but it doesn't appear to be charging. My wife has a similar laptop, so I was able to test my adapter on her Mac and her adapter on my Mac. At the time, the Magsafe2 Adapter was not lit up. I woke up this morning and it wouldn't start. I have a 2013 Macbook Air that suddenly won't boot.

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