Hello, I have instaled the ULTPIANO.X6A.
After doing this, always I have problems with the sound... it directly doesn't sound and leds don't illuminate.
It is the same issue that other users have had, in this thread the third post:
And this other one in another forum:
Is there a solution to install this file?
I formated the keyboard and now it sounds, so the problem is crearly that file. The waveforms installed in the flash memory as I have not formated it, are still there, and they work, so the problem seems to be a voice of the file and not a waveform.