what are you doing exactly? what is giving you ‘unsupported format’?
is you sdcard from your rample readable on your mac currently? if not perhaps its been corrupted?
if you can read/write to it, you should just be able to drop it on the sdcard…
the mac should not care if its a ‘supported’ format or not.
Im using BigSur 11.2.2 as well, and had no issues with this.
Im guessing some how your sdcard has become completely corrupted if your mac cannot read it.
in which case you will need to format it as fat32.
however, you will have lost all your factory samples…
due to licensing issues, these are not available for public download, you will need to contact squarp for these via the contact form .
(of course, if you have backed up the samples previously, then you wont need to do this )
btw: I should point out the issue of corrupt samples due to the early version of the firmware, just made that kit unreadable - it didn’t corrupt the whole sdcard - so this sounds a bit unusual.
is it the orginal sdcard? perhaps its a fault sdcard?