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mac stuck on grey screen when turning on

Hello,

I have an old iMac 2007 with mac OS x snow leopard 10.6.8. When I start the mac it starts to be grey screen with black squares as in the picture. When I enter the safe mode the computer works well. I run all the diagnostics and tried to reinstall the snow leopard but it got stuck in the middle in this grey screen.

Can someone help me please???


Posted on Oct 20, 2021 12:56 PM

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mac stuck on grey screen when turning on

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