Transfer not connecting / Checksum error (A4)

[avantronica]

@Arsey_Rob

How to people backup these days

a recent answer to that is already in your thread 2 posts above

Saving Sysex - to Mac - best way forward?

having now had my A4Mk2 for 10 months and just updating to OS1.5 I thought I ought to BackUp my many projects & sounds to my Mac ! As C6 is no longer working on OS Catalina (I’m on 10.15.5 Catalina) - I have installed Sysex Librarian. On the A4Mk2 I go to Sysex Dump and Send - All / Whole Project… and it tells me it is sending over ‘USB[Fast]’ - and I see it coming into Sysex Librarian (providing I have set it to ‘record’) - and I can see the files in the Documents folder of my Mac. I was ass…