So I had been dreaming of buying one of these for a while, finally found one I could afford, some aesthetic wear but seller assured me everything worked.
Got it the other day and everything does work apart from the switch that changes between the preset sound banks.
So I am very sad as this means half the sounds are inaccessible, and immensely frustrated as I imagine this is quite a simple fix but I am wary of taking the thing apart to have a look.
If anyone has any advice or resources (I have had a look through the technical spec you can find but omg it is intimidating!) I would be super grateful =)