U need to change your OP1 Keyboard?

Look this video, it’s really not difficult. Music 100% OP1
It’s not really a technical video, but it will give you a good idea of what to do.

https://www.youtube.com/watch?v=nlat3XRY8x4



I can only assume the large black thing is the battery. Sadly that dashes my desire to add a higher capacity battery just because I can because it seems to fill its area.

Thanks for posting.