[操作疑難] imac 21.5 2011 ver.

when press the power buttom, only a white screen and a Apple logo for 5 seconds, then auto turn off...
What problem is it?
Can repair?

去 Apple Genius Bar check 機啦

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似死左板,準備科水整

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應該只係 OS 問題,你試下按住 alt 睇下出唔出到 boot menu,有就用 usb boot 試試

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