How to get to startup options on Macbook Air M1, 2020?
I'm trying to run Apple Diagnostics, but when I hold down the Touch ID button, my screen never shows startup options; it just turns black.
MacBook Air 13″, macOS 15.3
You must first shut down the computer. Apple menu > Shut Down.
Then press and hold the power button to restart the computer. This is when you would be given the opportunity to view your startup options.
Use macOS Recovery on a Mac with Apple silicon - Apple Support
Also, please see this: Use Apple Diagnostics to test your Mac - Apple Support
❝Apple silicon
- Press and hold the power button on your Mac. (Every Mac has a power button. On laptop computers that have Touch ID, press and hold Touch ID.)
- As you continue to hold the power button, your Mac turns on and loads startup options. When you see Options, release the power button.
- Press and hold Command (⌘)-D on your keyboard. ❞