Mac OS Sequoia not recognizing USB Flash Drives

I have "these problems" with external drives too on my Studio/Sonoma. That is why I did not upgrade to Sequoia yet. What's wrong?

After I bought MacbookAir/Sequoia two months ago, I thought: well I already have a TM drive (Orico, 2TB/WD Blue-SATA) for my Studio, so let's also make TM of Air on that drive. After that, the Studio did not 'like' the drive, it might show but later pop out again.

Also the Air could not see it anymore.

I think processes get stopped halfway. Or, because the Air really 'pressed' me to make a key for the disk (I thought it was for the file only . . .) , this is not recognized anymore by the Studio???. Anyway: the drive does not show up in Finder. On the Air I deleted this location for a TM backup. But the SSD, at that moment attached, "did not pick that up", it is not released so to say.

The disk does show up on my old iMac/Ventura, mounted, files are there, can be dragged to the bin, (not visible in the bin) but the process of wiping/reformatting disk (volume level or dusk level) with the utility is not possible.

On the Air that disk does not show in finder or DU, but when I pull it out it says it was mounted there.

Today:

One of my external drives, with photo's (2Tb NVMe), does not show in Finder - but Lightroom and Photoshop see the drive and can work with it. And Disk Utility shows it too.

These are problems that recur more and more.

For my Studio I bought a new Samsumg T9 as Time Machine disk. Sure it works. But why should I spend money? Changing to OWC of all my drives will cost me >€2.000.

yes Apple I like your way of thinking. Really amused.

But why don't you get smart (you have all the error codes at hand for me) and handle these errors. I think there are very easily to detect problems with threads that are conflicting, processes that stopped somewhere (because they take long we think we are finished. .) . You know what the Apple Support staff said: yes, you'll have to wait maybe 4 to 8 hours before it will mount. He laughed at my SSD enclosure (Orico) and mocked me on the choice.

But maybe, Apple, it is better you sort it out, and ask the user what/how to restore . . .

(ps I sent in a bug report of max 500 letters as no one reads this thread anyway)

WillemfromZwolle, an Apple Support told me to attach the unit to my Studio M1, and just wait wait, maybe 8 hours - that might be needed for the attaching protocol to work it out once there is a fault.

Attempting to connect my My Book external hardware. it shows on the system, however unable to access.

Any help is appreciated!

They appear greyed out and will not mount although Time Machine is recognised.

Even using Apple connector does not work.

In my case, no the drives really aren't mounted.

I CAN manually mount them using Disk Utility, but that is a pain.

I'll dig through some other furniture to see if I can find another to test.

Found one. It was ExFAT and mounted just fine.

The only way it works with this SSD is with the option I mention. If I change to anything else, it doesn't mount.

My external Hard drive is no longer showing as I updated to Sequoia , even my IPhone 15pro doesn’t even show up anymore. This is really frustrating.

i had to buy a usb c adapter and plugged my thumb drive into it and thumb drive worked with this metheod

Exactly, and it’s not my External Hardrive alone, it doesn’t even recognize my IPhone 15 any more, all it does is charge my phone . And it started as soon as I updated.

👍

my usb is not showing files after updating

BushTurk: What adaptor did you use? None of the ones I have have helped

Have any of the apple support team seen this post? this is pretty critical.

I did the same, didn't fix it :(