He bought the Yamaha Genos we dont know how to find the serial namber
can you help us ?
On page 1 of the Owners manual it tells you where to look!
On the
name plate on the back of the keyboard lower Left hand side. One third of the way from the left side.
Just below the picture of it, in the manual, it has three lines for you to fill in to remember the numbers for your keyboard.
Allan