You can make a difference in the Apple Support Community!

When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.

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

VAIO Author

Level 4

1,215 points

SD card does not mount on startup after 13.4.1 update?

SD card is used for Time Machine and left in the slot.

MacBook Pro 16 inch, 2021

MacBook Pro 16″, macOS 13.4

Posted on Jul 5, 2023 4:47 AM

Top-ranking reply

VAIO Author

Level 4

1,215 points

Posted on Jul 6, 2023 4:33 AM

Cracked it.

Apple have changed some Security setting in 13.4.1:

Went to ‘System Settings’ > ‘Privacy & Security” then Scrolled Down to ‘Allow Accessories to Connect’ - then changed setting from ‘Ask for New Accessories’ to ‘Automatically When Unlocked” and ...

(Needless to say ‘Allow Accessories to Connect’ had not been touched before this problem.)

SD card now does mount on startup after 13.4.1 update

AppleCare were semi-useful on this problem.

View in context

SD card does not mount on startup after 13.4.1 update?

Similar questions