Home › Forums › Products › Rackmount › how to get the 4.1 os? › Reply To: how to get the 4.1 os? June 16, 2011 at 5:15 pm #122296 MbelgersMember thanx to great supprot the problem is already solved. I have and old 'demo' model from 2004 and the serial number should have an 'd' on the end. Btw: still working and great unit al tehse years on teh road and studio Thnx, Maarten
