Okay this thing hasnt worked a lick since I got it. Its is the dual powered burner. I try to erase sst27 and it erases but I get device not empty error when I do a blank check...im about to run this thing over...seriously!!! Ive quadrupled checked the shunts blah blah...the switches are right...okay so whats the secret besides junking it....eeeerrrrr