Hi I'm new here. I recieved the piano as a christmas gift and was able to use it once or twice as the tone bank select buttons don't work. The rest of the piano works fine, no issues with the looping/recording feature or the first layer of sounds themselves. I'm just totally unable to figure out why I cant access the second half of the tones. The only two times that the selection button has worked, it was totally random and I'm not sure of what I did in order to make it function but it didnt matter because upon switching to the upper half of the sound bank, I couldnt switch back. I'm frustrated beyond belief and cannot find any videos online besides folks doing slow pans over the keyboard while the demo music plays 5 times in a row. HELP PLS.