Tonverk ...what I found out some time ago about it

[misterairplane]

OK, thanks for sharing. It's coherent with what I found.
So I guess you haven't tried yet to investigate the UART port (I guess J1)? Me neither, as I've been mostly busy working on OP1-Field custom firmware. Since Tonverk is still in active development, I prioritize OP1.

working on op-1f?? keep me posted!! are you in the discord “custom operator”?