To flash a dreambox 500c you need FLASHWIZARD_PRO_5.2 boot up the box and get the network address set your network card on you computer one up from your dreambox then run flashwizard pro go into configuration and utilities set the dreambox ip: mine is 192:168:1:29 the login is root password is dreambox

Then go to install a firmware into flash memory and drop your image into drag and drop and the box will now flash