Stijn
thanks for your reply.
Yes, the Start/Stop is not working at all. Not when playing . . . . . not working in any circumstance.
I have not tried the reset cause i took the keyboard to a Yamaha approved technician provided by Yamaha/warranty . . . . . the problem seems to be hardware rather than software, they are still researching for me . . . but it is taking very long and it will probably take more . . . . .
At this point, just looking for an alternate way to do the OS upgrade without using the Start/Stop button.
If i do factory reset . . will i lose my settings ? whatever settings i have, do not even remember. . . . . thanks
thanks again.