Hey Zach,
I've found the reddit thread and tried flashing the firmware unto my OP1.
I get the following error when any note is played

Also, OP1 hangs forever if I press shift under the Envelope Mode (key 2) and try to access Play Mode (where the scale controls are).
Maybe the process of generating the patch from your patched firmware didn't work as expected? Happy to help with anything.
Hey Zach,
I've found the reddit thread and tried flashing the firmware unto my OP1.

I get the following error when any note is played
Also, OP1 hangs forever if I press shift under the Envelope Mode (key 2) and try to access Play Mode (where the scale controls are).
Maybe the process of generating the patch from your patched firmware didn't work as expected? Happy to help with anything.