Big Sur - external discs not mounting

App & System Services Core OS macOS

JessieI OP

Created Nov ’20

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Hi All,

I have a question. Just after the software upgrade from Catalina to Big Sur, my mac (Macbook Air 13-inch, Early 2015) stopped mounting any usb external discs. Doesn't matter, if it's an usb ssd card reader, usb stick, or external hdd. Does anyone have a similar problem, and any possible solution?

Thanks

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