Thank you for the prompt reply,none of them,USB from the pc to Dreambox mini USB "Dreambox 500 HD"
I think the mini usb conact in dreambox does not work "no cotact with the pc" a message appears in Dreamup program ( can not find a comport)
PS-for 4 monthes ago I have left the dreambox for updating problem,the seller fixed the problem,after that,the Dreambox does not have contact with the computer.