Want to highlight a helpful answer? Upvote!

Did someone help you, or did an answer or User Tip resolve your issue? Upvote by selecting the upvote arrow. Your feedback helps others! Learn more about when to upvote >

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

Startup screen flashes Apple Icon on various positions on the screen before log in page. How can I fix this

The start up screen flashes apple Icons in various positions before stopping on login screen. It has been doing that ever since There was a Kernal Panic. The Kernal Panic is gone but start up will not return to normal. Any solutions?


iMac 27″ 5K, macOS 10.15

Posted on Dec 9, 2020 10:38 AM

Reply
Question marked as Best reply

Posted on Dec 9, 2020 11:03 AM

Try booting into Safe Mode by booting with the Shift key held down and check there to see if the problem persists.  Reboot normally and test again.


NOTE: Safe Mode boot can take up to 10 minutes as it's doing the following; 

• Verifies your startup disk and attempts to repair directory issues, if needed

• Loads only required kernel extensions (prevents 3rd party kernel/extensions from loading)

• Prevents Startup Items and Login Items from opening automatically

• Disables user-installed fonts 

• Deletes font caches, kernel cache, and other system cache files


1 reply
Question marked as Best reply

Dec 9, 2020 11:03 AM in response to Beta216

Try booting into Safe Mode by booting with the Shift key held down and check there to see if the problem persists.  Reboot normally and test again.


NOTE: Safe Mode boot can take up to 10 minutes as it's doing the following; 

• Verifies your startup disk and attempts to repair directory issues, if needed

• Loads only required kernel extensions (prevents 3rd party kernel/extensions from loading)

• Prevents Startup Items and Login Items from opening automatically

• Disables user-installed fonts 

• Deletes font caches, kernel cache, and other system cache files


Startup screen flashes Apple Icon on various positions on the screen before log in page. How can I fix this

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple ID.