USB sticks not appearing after 13.2 update

To my understanding this is not 3rd party. This is supplied by Apple. I have never in my life installed software I didn't need, especially something to access a USB stick or SSD.

Also, it was working perfectly fine for years now until 13.0 . In 13.1 it was super buggy, and in 13.2 it doesn't even see the devices.

I think you're very uninformed. If you looked at the forums linked from the others you'll see that it's a widespread issue in 13.2, and it was already there since the beta.

"New Issues

(⚠️Major Issue) USB Drives, SD Cards, and Discs may not be able to be read by the system"

So, it's not only me. And it's seemingly for many (but not all) the moment they install 13.2.

[Edited by Moderator]

YannTKO wrote:

Hello,

Just after the 13.2 update, all my USB sticks and most of my external hard disks don't appear in the finder (macbook pro 13" 2017 intel)

I can see them with the disk utility in the recovery mode.

It's a very annoying issue.

Have someone a workaround ?

Thank you.

Yann.

Try a SafeBoot How to use safe mode on your Mac - Apple Support will sort many anomalies

Login and test. Reboot as normal and test.

I was on a long phone call 3 days ago with Apple's technical support, where they seemed clueless as to the specific problem, however the guy was very technical and we went through it together and got to the exact same conclusion.

After moving this extension (jmperipheraldevice.kext) all worked fine, but after 2-3 restarts it appeared again. It's quite unbelievable that apple released an update with such an issue.

I'm trying to figure a way now that I won't have to go every 5 minutes move the files. I'm thinking maybe finding something to replace this kext, so that it won't reappear again.

Anyone has any ideas?

[Edited by Moderator]

"After moving this extension (jmperipheraldevice.kext) all worked fine, but after 2-3 restarts it appeared again. It's quite unbelievable that apple released an update with such an issue."

Interesting that you would blame Apple for a third party extension’s misbehavior. That the extension reappears after being deleted implies that another third party app you installed is recreating it. Just a simple Google search of this kernel extension reveals it has been causing problems at least since 2018. J Micron makes drivers for various USB devices. Perhaps you installed the supplied software for a device you purchased when it didn’t actually need it.

Did as above on terminal and now all external disks are mounting. Quite bizarre after 5 yrs without problem. My Macbook Pro does not have that extension listed and does not have the problem after updating.

Have you checked Finder settings to see if the display options have changed on you.

Finder->Settings->General->”Show these items on the desktop"

Did you use some 3rd party app install that JMicron Technology Corp jmPeripheralDevice.kext? I do not have it at /Library/Extensions/.

Excuse my ignorance but how does one replace it ? In terminal. Having the same problem with external disks on MAc