ChrisYYC

Hi Gang, I had the buzzing issue with two keys. It would go away by selecting a different instrument, but always be there with my piano types. I did a factory reset and the buzz is no longer there with those keys. At least for today so far. To do the factory reset on mine, I turn power off, hold funtion button along with E-Piano button, and hold those while pressing power button once to turn it on. I continue to hold the function and EPiano button until the unit runs through the LED cycling sequence it does when powering on. I then let go. After doing that, buzz was gone. Hope it works for you.