how to reset vu+ duo original image & settings

hi

i have recently installed a blackhole image on my vu duo (original) didn't back up the original image , how can i reset it to it's original image & factory settings ? the box is only a couple of days old bought from germany ,do you think i still can return it and get a refund once it is reset ?

regards

thanx a lot cazuela
as the box is still few days old i think i still can get a refund from the seller (i hope so) i want to reset it to factory settings with original image so that i can return it to them . cccam business was a nightmare for me if u c what i mean :ops:.