My flash drive works on a Mac mini, but not on a MacBook Pro. How do I get it to work?

Also, when I plug my phone into the computer using the USB drive, the computer does not recognize it. I have not tried my phone on the Mac Mini. They have both worked before on my MBP. What's the problem?

It may just not be configured to SHOW.
1. Finder>Preferences.
2. MISSING FROM DESKTOP: Make sure under "General" for "Show these devices on the desktop" that you have a CHECK mark under "hard disks" as well as "external disks" (if you have a dash that indicates specific items are set to hide and others are not)
3. MISSING FROM SIDEBAR: Check the same items under the "Sidebar" section if you are missing them from the Sidebar of Finder.
EE

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