Sooooo, I could use some tips and tricks here.
I bought a Samsung T5 to use as a Time Machine Backup for my Macbook as I need an additional one. When setting it up and formatting it to AFPS something must have gone wrong. It seemed fine but when selecting it as a Time Machine Disk and selecting to encrypt it, it threw an error about not being able to be opened - and since then I haven’t found it in Finder.
If I try to do an Erase via Disk Utility, where I can find it, to reformat it again - I just get the following:
"Erasing “Samsung Portable SSD T5 Media” (disk2) and creating “Test”
Couldn’t open device.
Something seems to be really wrong with the whole disk, and I can’t find a good solution for how to get this back in working order.