Circle with a line through it
Learn what to do if your Mac starts up to a circle with a line through it (prohibitory symbol).
The 2.6.0 version of 3D Slash for Mac is provided as a free download on our website. This software for Mac OS X was originally developed by 3D Slash. This Mac download was scanned by our antivirus and was rated as safe. The application is included in Design & Photo Tools. R/slashdiablo: The official subreddit for a fantastic Diablo II community server.
Question mark
Learn what to do if your Mac starts up to a question mark. A hat in time - soundtrack cracked.
Options with a gear icon
Learn what to do if your Mac starts up to Options with a gear icon.
Blank (empty) screen
Learn what to do if your Mac starts up to a blank screen, such as an empty gray, black, or blue screen.
Apple logo
Learn what to do if your Mac starts up to an Apple logo or progress bar.
Globe with alert symbol
A globe with an exclamation point means that your Mac tried to start up from macOS Recovery over the Internet, but couldn't. Learn what to do if your Mac can't start up from macOS Recovery.
Lock icon
If your Mac is using a firmware password, the lock icon appears when you try to start up from another disk or volume, such as an external drive or macOS Recovery. Enter the firmware password to continue.
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System lock PIN code
Your Mac asks for a PIN code when it has been remotely locked using Find My. Enter the four-digit or six-digit passcode to continue.
Login window
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At the login window, enter your user account password to log in to your Mac. If FileVault is turned on, this also unlocks your disk. You might see a default desktop picture in the background, which might change to your chosen desktop picture when you select your account.
Thunderbolt, USB, or FireWire symbol
A large Thunderbolt , USB , or FireWire symbol against a dark background means that your Mac is in target disk mode.
Learn more
- Learn what to do if your Mac displays a message that it restarted because of a problem.
- When starting up from Windows using Boot Camp, your Mac doesn't show an Apple logo or the other macOS screens in this article.