I upgraded my 2019 iMac to Big Sur and the computer will not boot up. All I get is the apple on a black screen and then the screen goes completely black. What do I do?
Mac won't turn on after update to macOS Ventura or Monterey? Here are 10 ways to fix this issue, also an extended tip to recover lost files after update to latest macOS Ventura, Monterey or others.
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