![]() Did you happen to get any liquid on it or sit it in a puddle of water? ![]() The flashing question mark means it cannot detect the hard drive. Turn off the firmware password from macOS Recovery, then restart and reset NVRAM.Įject (⏏), F12, mouse button, or trackpad button Eject removable media, such as an optical disc. If your Mac is using a firmware password, this combination causes your Mac to start up from macOS Recovery instead. Option-Command (⌘)-P-R Reset NVRAM (or PRAM). macOS Recovery installs different versions of macOS, depending on the key combination you use while starting up. Option-Command-R to start up from macOS Recovery over the Internet. ![]() IMac Pro doesn't support this startup key.Ĭommand-R Start up from the built-in macOS Recovery system. To use the default boot image on the NetBoot server, hold down Option-N instead. N Start up from a compatible NetBoot server, if available. Or use Option-D to start up from this utility over the Internet. If your Mac is using a firmware password, you're asked to enter the password first.ĭ Start up from the built-in Apple Hardware Test or Apple Diagnostics utility, depending on your Mac model. Option (⌥) Start up to Startup Manager, which allows you to choose other startup disks, if available.
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