200      iPhone_iPad_Mac_apple

screen display problem

(1)Why every time I press F1 or click to lower the brightness of my screen in the settings, my screen will get dark at once?

(2)Why every time I open my MacBook after sleeping status, my screen will not get bright at once unless I press F2?

Hi,

Try resetting the NVRAM: https://support.apple.com/en-us/HT204063.

Try resetting the SMC: https://support.apple.com/en-us/HT201295.

最后更新：2017-09-23 23:33:29

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