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open core legacy patching

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    iMac14,1 with Big Sure using OpenCore Legacy Patcher does not boot

    Earlier this year I upgraded the OS of my iMac 21.5" Late 2013 (iMac14,1) to Big Sur using OpenCore Legacy Patcher. Today it crashed and it doesn't boot anymore. When I power it on, after 20 seconds I get the blinking folder with text "support.apple.com/mac/startup", see...
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