All OS

Hi everybody!

I have to upload the past OS firmware for the OP-1 (actually upgraded to #218)
There are some amazing sound that I need to call back.
Can anyone help?
Many thanks,

You could also just upload the presets you wanna call back to your OP1 in usb mode on your computer. Someone on the forum was kind enough to keep a backup of the previous OS on a server somewhere, I downloaded it precisely to use some previous presets and it works great. I’ll post the link here as soon as I find it!

Here is the thread

Courtesy of @mrclean in :

Thank you! @artsun @crudeoperator

Have fun!