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원문 게시자: Pimpy ,

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Try resetting you SMC (system management controller)

hold down the Shift+Control+Option keys and the Power button at the same time

https://osxdaily.com/2010/03/24/when-and-how-to-reset-your-mac-system-management-controller-smc/

my 2012 pre retina MacBook Pro was wiggin out  - not taking charge from MagSafe and holding only max 70% after Running battery down to zero   I found the above article and I’m good to go again

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