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.

tayen_funke Author

Level 1

5 points

USB Accessories Disabled

This problem started occurring a few days ago. I have a USB hub for my 2020 MacBook Air, that suddenly stopped connecting. It was working perfectly fine, with the things I had connected to it; a keyboard, 2nd monitor, wireless mouse and charging cable for my phone, and then my computer had a little bit of a fit. I have no idea if this is the cause, but my AC broke, so my computer was having to work in 90 degree temperatures, which seemed to make it very laggy and made work very hard, after that I updated to MacOS Catalina 10.15.7. First my second monitor stopped connecting and the next day every time I plug my USB hub in, I get a notification that "USB devices are disabled". The charging port works, but nothing else even connects. I've looked up a few fixes and none of them seem to have worked. There seem to be different solutions and I don't know which one fits my computer.

MacBook Air 13″, macOS 10.15

Posted on Oct 6, 2020 10:07 PM

Similar questions

2 replies

Jaxdew

Community Specialist

Oct 12, 2020 2:07 PM in response to tayen_funke

Hi Tayen,

We see your USB accessories aren't currently responding on your Mac. What macOS version are you using? Also, is it mentioning any of the USB devices taking up too much power? If so, check over the steps in If a Mac accessory needs more power or is using too much power.

Also, be sure to reset the SMC on that MAC as it can help with the as well with the USB: How to reset the SMC of your Mac.

Cheers!

Oct 17, 2020 3:59 PM in response to tayen_funke

I get this message when I connect my iPhone or my iPad but not with my iPod. It appears to have no effect, i.e., all my USB devices seem to work fine. However, it is disturbing for the screen to go black and give this seemingly bogus error message. I never saw that on my 2013 MacBook Pro, but on my new 16-inch MacBook Pro which I got this week, it happens every time. Seems to be a hardware bug since I was running 10.15.7 on both machines. I have been reporting it to Apple on their feedback page, but there's no response so far.

USB Accessories Disabled