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.

Thumb drive not being read.

I use standard USB thumb drives on my MacBook Pro. I use an adapter. Lately, when I connect, I can't find the thumb drive in the Finder even though the adapter and thumb drive indicate they are getting power. When I remove the thumb drive, I don't get the message that I did not eject it before removing it.

MacBook Pro 13”, macOS 10.15

Posted on Nov 29, 2019 7:49 AM

Reply
Question marked as Top-ranking reply

Posted on Nov 29, 2019 9:12 AM

I use an adapter.


What precipitated this change in behavior?


Did you try a different USB drive ?


Did you try a different adapter?


Did you try a reboot?


Did you try resetting NVRAM/PRAM http://support.apple.com/kb/ht1379


Using USB devices with your Mac - Apple Support



My suggestion would be to get a different adapter and test. Eliminate the obvious and easiest first.

2 replies
Question marked as Top-ranking reply

Nov 29, 2019 9:12 AM in response to ja1ck1

I use an adapter.


What precipitated this change in behavior?


Did you try a different USB drive ?


Did you try a different adapter?


Did you try a reboot?


Did you try resetting NVRAM/PRAM http://support.apple.com/kb/ht1379


Using USB devices with your Mac - Apple Support



My suggestion would be to get a different adapter and test. Eliminate the obvious and easiest first.

Thumb drive not being read.

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.