How to roll back to 5 from 5.0.10?

Someone knows how to roll back to 5 from 5.0.10 ? I urgently need to be able to input notes…

You should be able to input notes in 5.0.10. It’s almost certainly not the update.

What’s the problem exactly?

Keyboard controller doesn’t connect anymore (m-audio keystation 88). It worked in 5. Probably has to do with this thread :

Hi Ben,
Never mind. After three cycles of shutting down and booting again, it decided to work again. No idea what’s going on…