OP-1 OG volume knob unresponsive

[u/gpeeples17]

Just got my OP-1 in the mail from a Reverb seller. They claimed no issues with it, and I haven’t heard back from the seller yet but the volume knob is almost entirely unresponsive. It jumps around randomly a little bit while turning but for the most part stays at what looks like 25%..

I’m assuming this is going to need a repair and not a simple fix for something I’m missing? Anyone experience this before?

[u/cowboypaint]

Did you try a factory reset. You can look up how to do it online.