LOL a foam ball? You probably DID blow a fuse and didn't realize it. It can even be the slighest touch from a static charged hand :P. In any case, try to see if the fuses were blown by using a multimeter, if they were, then you have to replace or bridge em, which is easier, and does require soldering :P. I wish I had a picture to show ya a 2:54 in the morning lol, but the fuses are F1 and F2, one can be found right next to the battery charging pins, and F1 is on the other side, on the top left area from what I remember.