Losi 1/18 Xcelorin crawler ESC

[Rawdawg1551]

I bought a new Losi Xcelorin 1/18 crawler esc. It was cheap cause obviously they don't make them anymore. So I had every thing ready to plug into my computer and tune it. When I came back I noticed one of my nephews had plugged the esc into the USB adapter only problem is it was plugged into the wrong polarity!! When I tried to flip it and tune it, no lights would come on. The esc doesn't smell like it has been burned up but I can't get it to turn on no matter what I try. I am having problems with the program since it only takes 32 bit xp and never got to tune it. I'm so confused. Any help would be awesome??