Hi there
Some time ago I bought an m32 and it worked perfectly, last year after my uncle's death I put music aside and even though I was a fool who didn't know where or how to learn, after a break I decided to take it up again. But when I went back to it at the end of last year I discovered that three notes no longer make input (the fifth white key from the right, the 6 white from the right and the second black from the right). Nothing has ever been spilled on it, and I have always cleaned up the dust.
I don't know what to do!!!
Thank you