Hello, new are as follows...
Since I did not find any solution with different electronic, i decided to go to the only company to have an authorized service.
Certainly heard worse in a matter of money and delay in delivery.
16 january gave HD500 and today I got it.
They changed my whole board including the usb ...
It cost me 80 €
Works just fine...
P.S.
The company did not called me as they told me, they did not informed me that that the price is 80 € to tell them if I want to fix it.
After I asked to know why all this delay they told me that the man who repaired the HD500
was fired and became a mess because they could not find out who owns what!
:blink: