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Cant’t read any Micro SD cards

my iMac is not reading MicroSD cards any longer. It will read standard SD cards without issue.


when I insert the Micro SD card it comes up with the options to Eject, Ignore, Initialize. Disc Utility sees there is a card inserted but shows that it hasn’t been formatted. The card is a Fat formatted card.


I have rebooted, changed adapters, etc. again this is with ALL Micro SD cards.


any ideas? Thanks!

iMac 27″, macOS 11.5

Posted on Jan 29, 2022 8:57 AM

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Question marked as Top-ranking reply

Posted on Jan 29, 2022 9:23 AM

Please restart the computer in Safe Mode per the directions in the  How to use safe mode on your Mac - Apple Support link. 


Note: If you are using a wireless keyboard please either plug it in using the supplied Lightning cable that shipped with it. If you are using a legacy keyboard or a third-party keyboard that does not have re-charging abilities, please use any USB keyboard. Also note that a Safe Mode restart may require you to hold down the shift key for up to 5 minutes before the computer starts in Safe Mode. You will know it is in Safe Mode when you see “Safe Mode” in the upper right of the display.


After restarting in Safe Mode, then restart normally and test.

8 replies
Question marked as Top-ranking reply

Jan 29, 2022 9:23 AM in response to djcaseanova

Please restart the computer in Safe Mode per the directions in the  How to use safe mode on your Mac - Apple Support link. 


Note: If you are using a wireless keyboard please either plug it in using the supplied Lightning cable that shipped with it. If you are using a legacy keyboard or a third-party keyboard that does not have re-charging abilities, please use any USB keyboard. Also note that a Safe Mode restart may require you to hold down the shift key for up to 5 minutes before the computer starts in Safe Mode. You will know it is in Safe Mode when you see “Safe Mode” in the upper right of the display.


After restarting in Safe Mode, then restart normally and test.

Cant’t read any Micro SD cards

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