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Hey, I cant turn on my MacBook air after probebly running out of power. No Sound, light or any sign of action other then the amber light on the charger. resetting the smc turns charger light to green and back to amber. Letting it charge over Night still amber. Disconnecting battery and pluging in charger does NOT change the amber light to green and still no action. Hope somebody Can help me Kind regards Michael

With the battery disconnected are you able to start the system with just plugging in the MagSafe charger? The system should spontaneously boot. If it does you’ll need a new battery MacBook Air 13" Early 2015 Battery Replacement Update (07/09/2019) At this point I suspect your logic board has a problem. You’ll need to find someone local to fix it or you could just replace it MacBook Air 13" Early 2015 Logic Board Replacement has the logic board info inside.