![]() ![]() Check the display brightness settings or try to use an external monitorĪfter powering on your MacBook it'll go through a series of complex events, if every essential input and output hardware is completely functional, your MacBook will sound a chime and the screen backlight will be activated.īut if your MacBook Pro isn't turned on, try the methods below to rule out possible causes.Let your MacBook charge for a longer time. ![]()
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