Import csx to CS-80 V4

[Mayumi]

Hello,
I want to import a bank or a preset from version 3 to version 4 of the CS-80 but apparently I can't. 
It only accepts cs4x format. Suddenly I lost my sounds. There is no arpeggiator in version 4 whereas in version 3 there was a bank including the "One Finger" preset which interested me.
Thanks

[Funtmaster]

I assume you did an upgrade from one V Collection to a newer one. If not currently installed, you should still see CS80 V3 in the ASC and be able to install it. Because of the incompatibility, both versions are availabl and can be used simultaneously in a DAW.