MacBook Air does not turn on after downloading Monterey. What do I do to fix this or can it be fixed?
MacBook Air does not turn on after downloading Monterey. What do I do to fix this or can it be fixed?
Th referring article is Apple's definitive solution. When you tried it what happened? Did you get any error messages? Have you tried a safe mode start?
Start up your Mac in safe mode - Apple Support
Notice the very last comment if all fails is to contact Apple Support.