I need to downgrade back to Catalina asap. When I look at all of the help, they all require my computer to allow booting from external media. However, when I do a safe boot an open Security Utility, it does not open up a bigger window to allow external boot. Please HELP!!!!!
Thank you!
MacBook Pro 13″, macOS 11.1
Have you adjusted the settings for the T2 chip to allow alternate booting and alternate Installs?
About Startup Security Utility - Apple Support
Before you blithely set a firmware password, remember that there is no back door. If you forget that password, you will need to take your computer to an Apple store with your proof-of-purchase to get it reset.
Have you adjusted the settings for the T2 chip to allow alternate booting and alternate Installs?
About Startup Security Utility - Apple Support
Before you blithely set a firmware password, remember that there is no back door. If you forget that password, you will need to take your computer to an Apple store with your proof-of-purchase to get it reset.
Downgrading from Big Sur on an older MacBook Pro
