I will try to explain what happened hoping that someone could help.
Has you can imagine I've just received my upgraded ex-sub 37 and it was a total disaster.
If we want to consider 1. display not in line; 2. different friction of the new board knobs; 3. bank 16 button working bad; 4. filter cutoff knob playing a creepy noise, a secondary issue, the best surprise comes out when I tried to initialize the sound holding the panel/init button. All lights went on, the awry display showed black box instead of the "Init Preset" label, and the synth did not send out any audio signal even turning off everything and starting manually a real initialized sound. Worse than ever when I have tried to listen to the PANEL SOUND. Only with the modulation weel up, it starts to send out weird loud noises and you can fell the impulse of the selected waveform but more like an untunable “click”. With the MOD wheel down you cannot listen to any sound at all. LFOs are both dead excepted when selecting the sawtooth wave form...in this case you can see the LFO RATE light fixed with no other effect.
After reinstalling the 1.2 firmware nothing changed except for the init function that starts to work again.
I am really disappointed to receive this treatment after spending $1600 on my Moog sub 37 (that ironically worked great before the upgrade) and more $400 for this bad work.
Can someone help me please?

Thank you in advance...