Circle with a line through it
Refurbished Apple Mac All In One Desktop
Learn what to do if your Mac starts up to a circle with a line through it (prohibitory symbol).
Apple Core i5 (8 GB DDR3/1 TB/Mac OS X Mavericks/512 MB/21.5 Inch Screen/iMac 21.5 -inch 4K Retina, Core i5 3.1GHz/8GB/1TB/Intel Iris Pro 6200 / A1418). Apr 08, 2016. Aug 04, 2020. Διάλεξε ανάμεσα σε 17 All-in-One PC Apple το προϊόν που κάνει για σένα στην καλύτερη τιμή. Αγόρασε άμεσα μέσω του Skroutz!
Question mark
Learn what to do if your Mac starts up to a question mark.
Blank (empty) screen
Learn what to do if your Mac starts up to a blank 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.
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
List Of Apple Computers
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.
Apple Imac Desktop Computer Reviews
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.
- Learn what do do if your Mac continuously restarts.
- When starting up from Windows using Boot Camp, your Mac doesn't show an Apple logo or the other macOS screens in this article.