Just received a Boss VF-1 from ebay. I was seduced by the more weird own wonderful effects it had on it.
Played with it for about an hour, great fun. Decided to update the firmware.
Whole thing has blank screened, nada, nothing, bugger!
Really gutted, went from having more effects than I can ever dream of to a total waste of money in 5 minutes.
Now waiting for Roland support to get back to me with the cost of a repair.
Some you win some you lose I guess.