Last week I bought new Macbook Air 2020. I decided to change starting / Boot Mac when I open(start without press buttons) I tried this command by opening the terminal ......sudo nvram AutoBoot=%00.... but it is not working.
I’m looking forward to answering
[Re-Titled by Moderator]
Reset SMC https://support.apple.com/en-us/HT201295
Reset NVRAM https://support.apple.com/en-us/HT204063
Try again the command to disable autoboot
I know this isn't what you're hoping to hear, but in general, plugging in many of the NVRAM parameters via Terminal doesn't work well these days due to changes in both newer versions of macOS, and hardware changes of newer Macs. I believe this was a security-driven change.
Specifically I don't think manually tweaking the AutoBoot parameter has worked in some years now.
That command will only disable auto-booting when opening the display. Unfortunately there is no way to disable a key press from powering on the laptop.
MacBook Air2020 terminal command is not working
