I have a MacBook Pro retina display from 2015.
It was working till last week when it suddenly went blank. I tried to reboot but nothing happened. I tried rebooting after couple of days, it did power on once and allowed me to login but went black again
Since then I have not been able to login, The charger went from amber to green over certain time, that to me indicates the battery is still good.
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Give the age of the system I’m suspecting you battery has failed. While the MagSafe connector is showing a Green LED as well as showing the discharge state it can lie!
Give this a try, follow the first 6 Steps in this guide MacBook Pro 13" Retina Display Mid 2014 배터리 교체
Then with nothing connected, press and hold the power button a good 15secs to fully discharge the logic board. Now plug in the MagSafe charger the system should spontaneously startup, let it fully boot up and do a proper shutdown.
Reconnect the battery and restart again with the charger plugged in. Now quickly download CoconutBattery and take a snapshot of the apps main window with the battery tab opened and post it here for us to see.
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Do you hear the fan spinning when you try to turn the laptop on?
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