27 дек. 2021 г. · From the Apple menu in Recovery mode I simply selected Restart, then pressed the Alt (Option) key. This time the boot options came up!

Have you tried a force shutdown by holding the power button and will it? When it restarts are there any dialog screens that are open? This may or may not help ...

23 авг. 2021 г. · Press and hold all keys in the combination together, not one at a time. Shut down your Mac. Then press the power button to turn on your Mac.

12 мая 2023 г. · Make sure Apple Configurator is already running & open on the host Mac so you can watch for "DFU" to appear on the center of the app window ...

9 сент. 2021 г. · Try using an external USB keyboard to see if you can then Option Boot the laptop in case there is an issue with the built-in keyboard.

13 мая 2022 г. · I have a Mac Pro 2012 (5,1 - 3.46 GHz-12 core running Mac OS Mojave). No matter what I try, I can't use the option key to boot into the startup ...

14 февр. 2022 г. · FWIW, it may be a timing issue. If you have a startup chime you need to press and hold Option right after it. Same with any other key ...

20 сент. 2022 г. · Open System Preferences>Accounts, unlock the lock, click on the little plus icon, make a new admin account, log out & into the new account.

31 мар. 2011 г. · I have Mac OS and Win (Boot Camp) installed. This week it happened the second time that no boot option was available. What have i done?

21 янв. 2019 г. · My 2010 Mac Pro has disabled the boot options. When I restart, and I have pressed any key, like alt, R, Shift, etc... the system reboot normally.