My SD card reader refused to mount after macOS Sequoia update

My SD card reader simply refuses to mount. Tried another macbook running Sequoia and same issue.

Anyone has solutions?



[Re-Titled by Moderator]

Posted on Sep 17, 2024 7:39 PM

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Posted on Oct 26, 2024 5:49 PM

This may sound stupid but I noticed after plugging it in, something appears on the screen then quickly disappears. I believe it's a prompt to allow it to be read/mounted that is quickly disappearing. Maybe like the Allow/Trust pop up that shows up when you connect an iPhone/monitor to the Mac. It disappears so quickly that you can't see it.


So I plugged it in again and kept hitting Enter and boom. I can now see my Canon SD Card. This is clearly a Sequoia bug. Cause it's happened on two different Macs and I have been able to do the same thing using a different SD Card.

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My SD card reader refused to mount after macOS Sequoia update

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